UI Movement - The best UI design inspiration, daily
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
Design Hunt - Curated design inspiration for everyone
Thirty Bees - Open e-commerce platform designed to work out of the box.
UI Jar - Hand-picked design inspiration for your real life projects
Squarify.io - Sync inventory between Square and Shopify.