How Burbn became Instagram!!!!!
After working briefly at Twitter and Google, Kevin Systrom opted to launch his own project, Burbn, in 2009. The app was a check-in service similar to Foursquare, and let users leave messages for friends at different locations. Systrom and his co-founder Mike Krieger reportedly raised $500,000, led by Andreessen Horowitz, for the project, but it didn't take off like the founders had hoped.
Here is a video of Burbn now Instagram: