Compare Prices

Underwater Camera Gear


 - Spydro Underwater Fishing Camera (16GB) with phone app, smart HD video cam | night vision | 450 foot depth under water | automatic recorder bite triggered | for kayak, lure trolling, fish finder gear
Spydro Underwater Fishing Camera (16GB) with phone app, smart HD video cam | night vision | 450 foot depth under water | automatic recorder bite triggered | for kayak, lure trolling, fish finder gear

When it comes to fishing, anglers can only guess what occurs underwater. If it's with their imagination, experience or through the slight vibrations of their lines. Though, even the most delicate of lines can't convey the strike patterns of fish, their interaction with the lure, or if they're simply ghost fish who follow and never bite. Spydro, aims to change that. It can be cast & retrieved, trolled, or still-fished on the surface or the bottom. A calibrated, interchangeable weight system enables anglers to control the capture angles. Its hydrodynamic shape is optimum for obtaining stabilized underwater footage at higher speeds. Every time a fish triggers the camera Spydro automatically records the waypoints on a Google real-time map. Spydro is compact and can be fished from shore, from a boat, or through the ice. The information is automatically synced as soon as Spydro is on the water's surface and connects through iOS & Android App. With a tap you can easily share your action footage, your location and your data with other anglers. Get Spydro and relive & relay each fishing session. Analyze, replay and share so you can cherish and enjoy every angling adventure to the fullest. Item Specifications Over 3.5 Hours operation time Size: 5.5" (14 cm) Weight: 3.2 o...

  • Color: black
  • Brand: Spydro
  • ASIN: B07KMM1DLT
  • UPC: 616621485128
 - SeaLife DC2000 HD Underwater Digital Camera with Sea Dragon 2500 LED Light Set
SeaLife DC2000 HD Underwater Digital Camera with Sea Dragon 2500 LED Light Set

Includes DC2000 underwater housing, DC2000 inner camera, Sea Dragon 2500 Light Head (SL6712), Flex-Connect Grip (SL9905P), and Single Tray (SL9903P)

  • Brand: SeaLife
  • ASIN: B01N07WALW
  • UPC: 077068417446
 - Eyoyo 9 inch Fish Finder Underwater Fishing Camera 50M 1000TVL CAM Infrared IR LED Lights w/Remote Control
Eyoyo 9 inch Fish Finder Underwater Fishing Camera 50M 1000TVL CAM Infrared IR LED Lights w/Remote Control

This fish finder you are watching now is the newest popular, fashional, good looking and convenient Underwater Video Camera System. It not only has a large and color screen, but also has a height definition camera which has HD 1000 TV lines. There are high-power Infrared LED lights for camera light source;the camera light source can adjustable.can use the remote control operate the monitor Application field:monitoring aquaculture, underwater exploration, Ocean/Ice/Lake fishing swimming/diving/snorkeling are all available. Description 1. 9 inch color TFT LCD Screen 2. metal housing: strong, durable and easily radiating 3. high resolution camera,clear picture 4. night vision, and the lights can on/off.night lights adjustable 5. high quality special cable, waterproof and anti-corrosion/cold/tensile 6. 12V 4000MA lithium battery 7. special structure design make sure the camera is 100% waterproof.Waterproof Level: IP68 8. with sun-visor for bright environment outside Specifications Monitor: 9 inch LCD camera: high resolution focus(mm): 3.6mm Water proof: IP68 cable (diameter): 2MM Camera light source : 12 LED with high Infrared LED light(adjustable) depth: 50m camera picture: color monitor image: color monitor input voltage : 12VDC sun-visor : removable Charger: AC100-240V DC12.6V...

  • Color: 9 inch 50M Infrared Lights
  • Brand: Eyoyo
  • ASIN: B074PKJ24P
  • UPC: 889251234538
 - Eyoyo Portable 9 inch LCD Monitor Fish Finder HD 1000TVL Fishing Camera Waterproof Underwater DVR Video Cam (9 inch Infrared Lights(30m))
Eyoyo Portable 9 inch LCD Monitor Fish Finder HD 1000TVL Fishing Camera Waterproof Underwater DVR Video Cam (9 inch Infrared Lights(30m))

Important Tips Please download the third-party player KM, VLC for video playback. Please wipe the lens clean after use. Don't leave any water stains.This product you are watching now is the Newest popular, fashional, good looking and convenient Underwater Video Camera System. It not only has a large and color screen, but also has a height definition camera which has HD 1000 TV lines. There are high-power lights for camera light source;the camera light source can adjustable. DVR Recording Function,Free 8GB TF Card Included. Application field: monitoring aquaculture, underwater exploration, Ocean/Ice/Lake fishing swimming/diving/snorkeling are all available. Description: 1. 9 inch color TFT LCD Screen. 2. Metal housing: strong, durable and easily radiating. 3. High resolution camera,clear picture. 4. Night vision, and the lights can on/off. Night lights adjustable. 5. High quality special cable, waterproof and anti-corrosion/cold/tensile. 6. 12V 4000mAh lithium battery 7. Special structure design make sure the camera is 100% waterproof. Waterproof Level: IP68 8. With sun-visor for bright environment outside Specifications: Monitor: 9 inch LCD Camera: High resolution Water Proof: IP68 Camera Light Source: 12 LED with high Infrared light(adjustable) Depth: 30m Camera Picture: color M...

  • Color: 9 inch Infrared Lights(30m)
  • Brand: Eyoyo
  • ASIN: B07513DXRZ
 - GoPro HERO6 Black - Waterproof Digital Action Camera for Travel with Touch Screen 4K HD Video 12MP Photos
GoPro HERO6 Black - Waterproof Digital Action Camera for Travel with Touch Screen 4K HD Video 12MP Photos

HERO6 Black transforms your adventures into incredible QuikStories right on your phone. With its all-new GP1 chip, next-level video stabilization and 2x the performance, looking good has never been so easy. Add voice control and a durable waterproof design, and HERO6 Black is the ultimate GoPro for sharing life as you live it.

  • Color: Black
  • Brand: GoPro
  • ASIN: B074X5WPC5
  • UPC: 818279017809
 - Underwater Housing Case for Samsung Gear 360 Camera (2016 V1 only) - NOT 2017 Version
Underwater Housing Case for Samsung Gear 360 Camera (2016 V1 only) - NOT 2017 Version

The underwater case has been designed to fit the Samsung Gear 360 camera. It protects the camera from moisture, dust and mud. It is perfect for outdoor protection or underwater use. The unit has an integrated GoPro-style mounting platform allowing it to be mated to any GoPro compatible accessory such as mounts, helmet platforms, selfie handles etc. It also includes a 1/4-20 socket on the underside for mounting to any tripod or monopod.

  • Brand: VidPro
  • ASIN: B073SGCQQK
  • UPC: 026127771128
 - Movo GB-U70 Underwater Diving Rig for GoPro Hero with Cold Shoe Mounts, Wrist Strap - Works with HERO3, HERO4, HERO5, HERO6, HERO7 and Waterproof Action Cams - Perfect Scuba Gear GoPro Accessory
Movo GB-U70 Underwater Diving Rig for GoPro Hero with Cold Shoe Mounts, Wrist Strap - Works with HERO3, HERO4, HERO5, HERO6, HERO7 and Waterproof Action Cams - Perfect Scuba Gear GoPro Accessory

Specifications Construction: Aluminum Alloy Load Capacity: 11 lbs (5kg) Dimensions: Weight:

  • Brand: Movo
  • ASIN: B0734772HY
  • UPC: 817711020520
 - Luxebell Accessories Kit for AKASO EK5000 EK7000 4K WiFi Action Camera Gopro Hero 7 6 5/Session 5/Hero 4/3+/3/2/1 Fusion (14 Items)
Luxebell Accessories Kit for AKASO EK5000 EK7000 4K WiFi Action Camera Gopro Hero 7 6 5/Session 5/Hero 4/3+/3/2/1 Fusion (14 Items)

Package list 1 x Chest Strap Mount 1 x Head Strap Mount 1 x Flexible Tripod 1 x Handheld Extendable Monopod 1 x Wrist Strap 1 x Clip Mount 1 x Floating Handle Grip 1 x Car Suction Cup Mount 2 x Flat Adhesive Mounts 2 x Curved Surface Mounts 2 x Mount Adapter 3 x Long Screw 2 x Jhook Buckle 2 x Quick Release Buckle 1 x Wrench Tool 1 x Luxebell Storage Pouch Click Add To Cart at the top of the page to get yours! Luxebell:Luxebell value your satisfaction. If for any reason you are unhappy with any product by Luxebell ,please do not hesitate to contact us. We take full ownership and responsibility for the quality of our products and will do our very best to solve your problem quickly and efficiently!Luxebell is a registered trademark protected by US Trademark Law. Luxebell products are sold by authorized sellers only.

  • Color: 14-in-1
  • Brand: Luxebell
  • ASIN: B00PQ9YNI0
  • UPC: 706693108558
 - DiCAPac WP-S5 Waterproof Case for Digital SLR Cameras
DiCAPac WP-S5 Waterproof Case for Digital SLR Cameras

Floating 100% Waterproof case If you enjoy the moment, let's get on with the floating waterproof case, Dicapac. Dicapac delivers a soft case with a polycarbonate lens and a neck strap for the digital camera. Nontoxic case is no harm when you use. The lens port allows the lens to extend out to 2.0″(50mm) and has an internal diameter of 6.0″(150mm). Now, let your digital camera free around water while you are swimming pool, at the beach, it rains. You deserve to capture the moment without worries. Most of the functions are available with this case without wheeling. The most benefit is that you get clear photos via the polycarbonate lens on the case. All purposes dustproof, fogproof, sandproof, snowproof, waterproof case for smart devices. UV coated polycarbonate lens. Dicapac provide the UV coated polycarbonate lens cover for users. Polycarbonate has low scratch-resistance and a hard coating. It is applied to polycarbonate eyewear lenses. Polycarbonate is highly transparent to visible light. Please take off your original filter. Unless you should get rid of your filter as UV, the photos would have the flare and rainbow color.

  • Color: 1 Pack
  • Brand: DiCAPac
  • ASIN: B0045T45L2
  • UPC: 520864106255
 - Tteoobl Black Waterproof Bag Pouch Case Cover for SLR DSLR Camera Canon 600D 40D 60D 7D 5D, Nikon D80 D90 D700 D5100 7000 Up to 65 Feets (L)
Tteoobl Black Waterproof Bag Pouch Case Cover for SLR DSLR Camera Canon 600D 40D 60D 7D 5D, Nikon D80 D90 D700 D5100 7000 Up to 65 Feets (L)

No tax and import fees needed. We offer 15-25 days Brand : Tteoobl Specifications : 17.5CM x19CMx7.8CM Lens length :10CM Transparent lens effective diameter: 8CM Material : high quality polycarbonate + PMMA + PVC + ABS reinforcement material Maximum water depth: 20 m Notes: 1. Before use, please carry out a waterproof test on the product and check whether the product has damaged parts or not, particularly for the seal part and the periphery, not continuously use the product at high temperature, and avoid scratch or drag by sharp articles in the use process. 2. The product is suitable for the temperature of between 15 DEG C below zero and 50 DEG C, but not in hot spring. 3. After used in the water, if the camera needs to be taken out, please put the seal downward so as to prevent the residual water from entering the waterproof jacket. 4. After use each time, please check the port and corners and the seal, wipe the water, package the camera into the prior box and store the box. Fit for : Canon550D18-55 /Canon550D18-200/Canon50D 18-135 Canon450 18-55/NikonD90 18-105/Canon550D18-135 Nikon7000 18-105/Canon600D18-135/NikonD5100 18-55 Canon40D 17-85//Canon60D18-200/Canon500D18-200 Canon7D15-85/Canon60D17-40/NikonD90 18-200 Canon7D 18-200/NikonD80 18-135/Canon5DII24-105 Canon600D18-200/C...

  • Color: BLACK
  • Brand: Tteoobl
  • ASIN: B00JCJWYIG
  • UPC: 532166320185
 - Ape Case, Shoulder Bag for DSLR, Large, Pro Digital Photo/Video Camera Luggage case (ACPRO1600)
Ape Case, Shoulder Bag for DSLR, Large, Pro Digital Photo/Video Camera Luggage case (ACPRO1600)

A shoulder bag that is truly designed for working professionals, and serious enthusiasts! This is Ape Case’s largest shoulder bag. The ACPRO1600 contains thick adjustable padding to configure your equipment to your needs for custom organization. This ensures your gear is concealed while you’re on the move. Artists love the signature Hi-Vis yellow interior. Smaller items such as memory cards, batteries, and other accessories are easier to see in low lighting. The easy-access features a slimmer profile, contoured to move easily with the body and help navigate busy airports, streets and crowded subways. Soft edges, briefcase styling, leather-like details at contact points, and a signature logo create a discreet aesthetic.

  • Color: Black
  • Brand: Ape Case
  • ASIN: B002Q0WMB2
  • UPC: 856359000228
 - HOLACA for Ricoh Theta Water Resistant Housing, Case for Ricoh Theta S Theta V M15 & SC Digital Camera, Waterproof Hard Case for Ricoh Theta S and M15 & Samsung Gear 360 2017
HOLACA for Ricoh Theta Water Resistant Housing, Case for Ricoh Theta S Theta V M15 & SC Digital Camera, Waterproof Hard Case for Ricoh Theta S and M15 & Samsung Gear 360 2017

Specification: Weight: 200g Package: White Paper Box Package including: 1PC Water resistant Case Note: Camera and other accessoies are not included (It can not be used under water). Thanks God who let us know each other in Amazon. Choosing HOLACA, you choose professional approach, accuracy, short terms for quality services, large experience of our service technicians and reasonable prices. Would you please give us such a chance? Service from HOLACA: We are unable to offer you the lowest price, but we can offer you the best products with high quality and stable supply! We would rather take a little time to prove our reasonable price than to take a life time to apology for the poor quality. We have made in our commitment that we will not sacrifice our future development for a short-time interest. We are striving to be recognized and followed by more and more people who always in the pursuit of best quality. This is our commitment and this is also is our greatest driving force! We have nothing to give but highest quality in return for your trust and your support. How to Contact us: Login in your Amazon account > Click "Your Orders" > Find the order > Click "Contact seller" on the right side Thank you very much; we are a new seller, we won't get long-term development withou...

  • Color: Water Resistant Housing Insta360 ONE X & M15 & SC
  • Brand: HOLACA
  • ASIN: B01LAK4T78
  • UPC: 712994949608
 - USA Gear Floating Action Camera Hand Grip Mount w/Waterproof Wrist Strap & Tripod Adapter Works w/HERO6 Black, HERO5 Black/Session, YI 4K, AKASO EK70000, Sony AZ1, Contour ROAM2 & More
USA Gear Floating Action Camera Hand Grip Mount w/Waterproof Wrist Strap & Tripod Adapter Works w/HERO6 Black, HERO5 Black/Session, YI 4K, AKASO EK70000, Sony AZ1, Contour ROAM2 & More

USA Gear Floating Hand Grip - Conquer extreme video by land , sea , and air! Durable Versatility - The floating action mount is the ultimate hand grip for your action cam or digital camera. The watertight design makes it the perfect companion for watersports , while the secure wrist strap and articulating swivel joint unlock endless posibilities for skateboarding , skydiving , or whatever you do! When a fixed-position mount just won't do , the hand grip works like a monopod to allow you to take full control of your shots! Universal Design - Not only does the float mount seamlessly attach to your GoPro HERO or Toshiba Camileo X-Sports action cam , but it also includes a STANDARD TRIPOD SOCKET ADAPTER. This allows you to connect virtually any camcorder or digital camera (float feature works with devices up to .5 lbs). USA Gear Action Mounts - Whether you're surfing , sky diving , base jumping or just riding mad dunes , we have you covered. USA Gear offers many types of action mounts that attach to different surfaces , vehicles and even your body to accommodate all types of filming and photography. Every action mount comes with a 3-Year Manufacturer's Warranty. Compatible With: - GoPro HeroHD , Hero5 , Hero Session , Hero+ LCD , Hero4 , Hero3+ , Hero3 , Hero2 , Hero - Drift Stealth ...

  • Brand: USA Gear
  • ASIN: B012PUK5V6
  • UPC: 637836582914
 - Suptig Diving Light High Power Dimmable Waterproof LED Video Light Fill Night Light Diving Underwater Light Waterproof 147ft(45m) for Gopro Hero 6/5/5S/4/4S/3+/2/SJCAM/YI Action Cameras
Suptig Diving Light High Power Dimmable Waterproof LED Video Light Fill Night Light Diving Underwater Light Waterproof 147ft(45m) for Gopro Hero 6/5/5S/4/4S/3+/2/SJCAM/YI Action Cameras

Widely used: Perfect compatibility with Gopro Hero 6, Hero 5, Hero 2018, Hero session, Hero 4, Hero 3+, Hero 3, Hero 2, Hero 4 session, Hero 5 session, Hero+, Hero+LCD and Other Action CameraWIDE-ANGLE 500Lux Max. (5500K-6000K) by 36 LEDs.Waterproof deep: 147ftColor: BlackWeight:0.18LbSize: 2.95 in(L) x 1.65 in(W) x 2.75 in(H)THREE MODES OF LIGHT: Normal(HI) Power saving(LOW),Flash(SOS)Rechargeable lithium battery (replaceable): actual capacity 1050mAh (NOTE: The battery is compatible with Gopro Hero 3, Hero 3+ camera battery)Running time: High light (about 1.5 hours); Low light (about 4 hours); SOS (about 6 hours)All of LED waterproof light are backed by 24-Month Warranty and 30 Days Money Back GuaranteeYou just need to buy a suptig cold shoe mount adapter to mount it on the hot shoe seat of the SLR camera (Sales link: https://www.amazon.com/dp/B07CB68ZWF )

  • Brand: Suptig
  • ASIN: B07BCC4VQW
  • UPC: 717390576717
 - YYST One Stainless Steel Scuba Diving Lanyard Stainless Steel Spring Coiled Lanyard with Quick Release Buckle for Cameras and Dive Lights
YYST One Stainless Steel Scuba Diving Lanyard Stainless Steel Spring Coiled Lanyard with Quick Release Buckle for Cameras and Dive Lights

1 lanyard .Coiled Lanyard is made of stainless steel line and TPU.

  • Brand: YYST
  • ASIN: B01H9XGDCO
  • UPC: 610396190874
 - DiCAPac  WP-S3 High-End and Mirrorless Camera Series Waterproof Case
DiCAPac WP-S3 High-End and Mirrorless Camera Series Waterproof Case

Floating 100 percent Waterproof case. If you enjoy the moment, let's get on with the floating waterproof case, Dicapac. Dicapac delivers a soft case with a polycarbonate lens and a neck strap for the digital camera. Nontoxic case is no harm when you use. The lens port allows the lens to extend out to 2.0″(50mm) and has an internal diameter of 6.0″(150mm). The port will fit a lens up to 65mm in diameter and 68mm in length. Now, let your digital camera around water while you are swimming pool, at the beach, it rains. You deserve to capture the moment without worries. Most of the functions are available with this case without wheeling. The most benefit is that you get clear photos via the polycarbonate lens on the case. All purposes dustproof, fogproof, sandproof, snowproof, waterproof case for smart devices. UV coated polycarbonate lens Dicapac provide the UV coated polycarbonate lens cover for users. Polycarbonate has low scratch-resistance and a hard coating. It is applied to polycarbonate eyewear lenses. Polycarbonate is highly transparent to visible light. Please take off your original filter. Unless you should get rid of your filter as UV, the photos would have the flare and rainbow color.Fitting devices Cannon Hybrid EOS M, M2, Powershot SX500IS, SX510IS Panasonic Hybrid ...

  • Color: Black
  • Brand: Dicapac USA Inc.
  • ASIN: B00B8L05Y6
 - VVHOOY 3 in 1 Universal Waterproof Action Camera Accessories Bundle Kit - Head Strap Mount/Chest Harness/Selfie stick Compatible with Gopro Hero 7 6 5/AKASO EK7000/APEMAN/ODRVM/Crosstour Action Camera
VVHOOY 3 in 1 Universal Waterproof Action Camera Accessories Bundle Kit - Head Strap Mount/Chest Harness/Selfie stick Compatible with Gopro Hero 7 6 5/AKASO EK7000/APEMAN/ODRVM/Crosstour Action Camera

VVHOOY Head Strap & Chest Strap Mount, Thumbscrew,Selfie Stick,Tripod Mount,J-hook are compatible with many action camera, fully adjustable to fit most sizes Why Choose VVHOOY Action Camera Accessories Kit Let's say you love to surf, scuba dive, hang glide, motocross, downhill snow ski, or mountain bike - but you have no way of filming your active adventures as your hands are busy keeping you on the right path and safe. Product Feature: Handheld Monopod+Tripod Adapter Extend from 8.26" to 42.52". Light weight, easy to take. Material: Aluminum. Chest & Head Belt Strap Mount, Adjustable and compact design. Made of superior plastic and nylon, durable and light weight. Package List: 1 x Handheld Selfie Stick 1 x Chest Belt Strap Mount 1 x Head Belt Strap Mount 2 xThumbscrew 1x Tripod Mount1x J hook Mount Note: Camera and camera housing is not included in. High quality and easy to use. Great product to use to record yourself working or outdoor playing. great for a gift! There's definitely something for any activity you're doing, whether it's hiking, fishing, snowboarding, skateboarding, swimming! If for any reason you are unhappy with any product by here, please do not hesitate to contact us. We take full ownership and responsibility for the quality of our products and wi...

  • Brand: VVHOOY
  • ASIN: B01FJUM2GU
  • UPC: 603849464158
 - CamKix Waterproof Housing Compatible with GoPro Hero5 / Hero4 Session Action Camera - for Underwater Use - Water Resistant up to 132ft (40m) - Take Your Camera 4X Deeper
CamKix Waterproof Housing Compatible with GoPro Hero5 / Hero4 Session Action Camera - for Underwater Use - Water Resistant up to 132ft (40m) - Take Your Camera 4X Deeper

CamKix Waterproof Housing for GoPro Hero4 Session Action Camera With this waterproof housing you can take your GoPro Hero5 and Hero4 Session camera up to 4x deeper underwater (132ft/40m) than without it (33ft/10m). Now you can get closer to exiting fresh or salt water creatures like fish, corals, jellyfish, turtles, starfish, squids, etc. (always keep a safe distance from dangerous animals). The toggle latch clamp on the side of the housing makes it easy to open/close when needed. It also assures a secure waterproof locking of the housing. This waterproof housing is specifically designed for GoPro Hero4 Session action cameras. When inserted, you can still operate the shutter/select button and the status button. The housing does not only offer greater waterproof protection to your GoPro Session camera, it also offers extra protection against dust, scratches, light impacts and shocks. CamKix offers a wide selection of GoPro mounts and accessories that you can mix to create your own solution. Need a wider angle? Try the CamKix Waterproof Telescopic Pole (also works as a Floating Hand Grip and features a Detachable Cradle for your GoPro WiFi remote). Need a compact and steady base? Add the CamKix Premium Tripod. The possibilities are endless! Contents: - 1x Waterproof housing ...

  • Color: Waterproof Housing
  • Brand: CamKix
  • ASIN: B01AN3LJBW
  • UPC: 711099324150

Underwater Camera Gear S496 Search Results

Looking for more Underwater Camera Gear similar ideas? Try to explore these popular searches: Flocked Saddle, Series 3 Light Bath Lighting, and Cleaner End Hose Assembly.

Look at Underwater Camera Gear Video Reviews

Shooting With Underwater Camera Housing | The Ikelite Gear Review

Underwater Camera Gear Review

In this video, I'm going to review the Ikelight underwater housing for the 5D Mark III. Check it ...

Tags: underwater,photo,shoot,photoshoot,photos,pictur...

BEST 5: Underwater Cameras

Underwater Camera Gear Review

Top 5 Underwater Cameras 1. Olympus TG-5 - https://amzn.to/2scfSnp 2. Panasonic Lumix TS4 - http...

Tags: @TechGuru#,Tech guru,Technology,Gadgets,Tech,Up...

Outex Underwater Camera Housing - Perfect for Travel

Underwater Camera Gear Review

➨ My Recommended Gear: https://kit.com/photorectoby 🗓Get serious about Instagram: https://later.c...

Tags: canon,nikon,dslr,photography help,sony,portrait...

Nikon Z7 Underwater Camera Review

Underwater Camera Gear Review

The Nikon Z7 is a high resolution 46-megapixel beast of a camera that produces the best overall i...

Tags: underwater photography,nikon Z7,best underwater...

Canon 5D Mark IV Underwater Camera Review - Part 1

Underwater Camera Gear Review

We've put the Canon 5D Mark IV through a series of test dives with surprising autofocus results! ...

Tags: backscatter,canon,5d,5d4,5d mark iv,5d mark 4,n...

Xldealo.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com