Amazon - Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & much more

RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.

eBay - Buy and sell electronics, cars, fashion apparel, collectibles, sporting goods, digital cameras, baby items, coupons, and everything else on eBay, the world's online marketplace

Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything

Etsy - Buy and sell handmade or vintage items, art and supplies on Etsy, the worlds most vibrant handmade...

Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.