Most people can't use photoshop or linux. I can, but do everything in my power not to, especially for something as trivial as a social network. But, with photoshop and linux, and when a user fails, they get frustrated and ask for help or give up. With facebook, they unknowingly spew semi-private communications all over the web. You're right- it's a terrible business model for an established company, and one that should have been snuffed out years ago when they still had a chance. It's now institutional, and I fear, permanent. Thankfully, Google appears to be ready to pick up the slack.