Robin Good: Sellfy is a new web service which allows you to upload e-books, music, video, software and to sell these items directly on Twitter, Facebook or on your own website with just a simple link.
How it works:
1) Upload your product
2) Set the price
3) Share "buy now" URL on Facebook or Twitter or
"buy now" buttons that can be embedded in any website.
Other key features:
Try it out now: http://sellfy.com/
Via Robin Good