We have always been hugely inspired by Wikipedia. There is a part of Historypin that is very similar to Wikipedia, which is the idea of this content getting better and better and more and more accurate. I guess there is a line somewhere between Flickr and Wikipedia that Historypin is trying to learn from. You can encourage people to share and put content onto a platform, and then you can encourage other people to add to, contextualize and improve the metadata and information attached to that content. We try to learn from people who have been doing it well for a long time.