they just don't get it....
Look Google, it's really simple. I have been invited to many social networking sites, and only joined one, Facebook.
I'm on Facebook, so are my friends. We're not changing from Facebook just so Google can make more money, nope, we're happy on Facebook, and letting the owners of Facebook try and make money out of us instead. We're not going to invest hours upon hours running a second social site and bringing our friends across etc.
Google can buy as many social networking sites as they want. Google can spunk as much money up a wall as they want finding a competitor to Facebook, but frankly, it's all a waste, because non of us are moving. We're happy where we are thanks.
So please Google, if you want to compete with Facebook, stump up the $4bn or so you need to buy it and be done with. Cheaper in the long run.
Face it Google, you missed this boat. It sailed a long time ago.