Amazon.com, also called Amazon, is an American electronic commerce and cloud computing company.

AliExpress.com is an online retail service made up of mostly small Chinese businesses offering products to international online buyers.

Newegg is an online retailer of items including computer hardware and consumer electronics.

eBay Inc. is a multinational e-commerce corporation, facilitating online consumer-to-consumer and business-to-consumer sales.

DealExtreme is an online coupon code and discount portal.