A number of social networks may be in a significant amount of trouble. Facebook has managed to patent the idea of "dynamically providing a news feed about a user of a social network." This is no rumor or joke; the paperwork is all in order. Facebook filed for what the United States Patent and Trademark Office has designated patent number 7,669,123 in August of 2006, and Mark Zuckerberg's name appears eight times on the official document. As for what, exactly,