I listen to the podcast Foundation with Kevin Rose where he interviews various tech startups. The podcast is very good and offers some helpful insight for anyone interested in entrepreneurship or creating a new startup.
During episode 14 of his Foundation podcast, Kevin interviewed Ryan Carson from Carsonified. Ryan is also the founder of the FOWA and FOWD conferences. One of Ryan’s startups was Think Vitamin, which is now called Treehouse. The Treehouse material is a series of videos you watch, and then you can test your knowledge with a quiz at the end of each section. When you pass a quiz, you unlock a badge. They also offer a public profile page where you can share which sections you have unlocked, and it shows a badge and a link to that section.
Team Treehouse – http://teamtreehouse.com/
Carsonified – http://carsonified.com/
Foundation podcast – http://revision3.com/foundation
