WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
FeedbackSpark - FeedbackSpark is in-product micro survey tool that helps product teams to remove guesswork from product development. Harness the voice of customer to drive product success.
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.
Zazzy - Design and sell your own 3D printed jewelry
PrestaShop - Create your online store with PrestaShop's free shopping cart software. Build an ecommerce website for free and start selling online with hundreds of powerful features.
Love & Robots - Create your own 3D printed jewelry & accessories online