Instagram is a fun and quirky way to share your life with friends through a series of pictures. Snap a photo with your mobile phone and then choose a filter to transform the image.
From founders Kevin Systrom and Mike Krieger: "When we were kids we loved playing around with cameras. We loved how different types of old cameras marketed themselves as "instant" - something we take for granted today. We also felt that the snapshots people were taking were kind of like telegrams in that they got sent over the wire to others - so we figured why not combine the two?"