I couldn't agree more. If my close friends and family used twitter and flickr there'd be no reason for me to ever log into FB. Despite the enormous number of

I couldn't agree more. If my close friends and family used twitter and flickr there'd be no reason for me to ever log into FB. Despite the enormous number of users I can visualize a mass exodus from the service, it's harder for me to do this with Google which provides an actual service that would be hard to replace.