Instead of a system where you need to go back an restrict access based on lists for anything you post, you are prompted to choose which group of friends to share with when posting.

Though the idea that you can restrict further sharing (as they claim) is foolish – they can’t stop cut/pastes. As a result you end up with a false sense of privacy.

Facebook, on the other hand has had such exponential growth, it’s crushing. It took just 5 months to reach half a billion users after hitting 400 million, which was just 3 months after hitting 350 million! No previous social networking site has reached that level of saturation. Now, as the article says, “the bigger Facebook gets, the harder it becomes to switch to a new platform;” and “you can’t switch over to a new social network unless your friends do so as well.” How on earth will 600 million people do anything en masse?