Last December C. Wetherell, a Google software engineer, told me that his next twenty-percent project would be an algorithm for love. It seems to have entered beta.
Complimentarily, Red Robot of Diesel Sweeties has been honing an algorithm for hate. While I would not take on such a research program myself, I commend him for this endeavor, as it progresses our overall understanding of emotional algorithms. Perhaps Google should recruit Red Robot to be their new Director of Human Experience Engineering.
Perhaps a more practical approach would be for Google to acquire an anti-social networking site, such as Snubster, or perhaps adapt Orkut to this end.