MakCorps - Hotel Price Comparison API
OhoShop - OhoShop is a mobile eCommerce platform which creates iOS and Android shopping cart apps for local businesses.
Gopher - Better hotel deals automatically, every time + cash back
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
TripRebel - Book your hotel now & get a refund when the price drops
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.