Shoprocket - Add eCommerce to your existing website in 5 minutes.
ReDigi - ReDigi is the future of digital music.
Pixycart - Pixycart is another great way to sell your digital downloads: art, music, videos, photography...
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.
Sellfy - Sellfy is an easy to use but powerful e-commerce platform where you can sell digital, print on demand or subscription products. Use a Sellfy storefront to create a beautiful online store or embed a Sellfy shopping cart to your own website.
Amazon Pay - Amazon Pay is an online payment service that makes checkout on your site fast and secure for hundreds of millions of Amazon customers around the world.