Email can't be defined as a Social Network in the context of this patent, because they had to define what it constitutes a Social Network to be able to use the

Email can't be defined as a Social Network in the context of this patent, because they had to define what it constitutes a Social Network to be able to use the term in their text. But Windows Live Messenger can be defined as a SN, with that definition. I don't know if Yahoo! Messenger could also be included, because I don't use it and I'm not very familiar with it. Read my response above. http://news.ycombinator.com/item?id=4541041 http://news.ycombinator.com/item?id=4541041