Google is set to join the social networking scene with introduction of Friend Connect. It will be a set of "APIs for Open Social participation to pull profile information from social networks into third party websites."
I guess Google's view social networking sites as complementary to search engines; the fact is that all this ultimately contribute to the giant ad machine
They have to come up with something really special for people to accept it. There are so many social networking sites around these days and I would rather go for myspace.