Gumroad could create entire new ways of selling things online. It could blow up PayPal. Seriously. This is disruptive technology.
It’s dead simple. Login to Gumroad using Twitter or Facebook. Create a link for what to sell. Gumroad does the rest (and takes 5% plus 30 cents per transaction.)
This means you can sell anything via Twitter, Facebook, a blog, or anyplace else you can post a link.
To test it out, I created a link to sell a cat photo. It took about 15 seconds. Click to see it.