Social media proves its worth when it comes to spreading news across the world but occasionally it can create it too. Yesterday (18 Dec 2012) it seems everyone was talking about Instagram and what they plan to do with users' photos.
Instagram announced a few changes to their T&Cs and most people did the same thing they do with all T&Cs, speed-reading through them not really understanding or caring what had changed.
I also think that people who are quitting Instagram in a huff are weird. I don't use Instagram but I use Google Images a lot and I find it very convenient to have an enormous stock of images easily accessible to me. This is why I don't mind in the least Google using my photos that I choose to upload.