Instagram is a beautiful way to share your world. It's a photo sharing and moment sharing reinvented with lashings of retro style. Snap a picture, choose a filter to transform it and then post it to Facebook, Twitter, and Tumblr. This app is taking the world with around 30 million active users; it was an exclusive Apple product until last week when the Android version was released and racked up more than 1 million downloads in 12 hours. And now Instagram was officially taken over by Facebook for a nifty sum of $1 billion.