Re. Facebook and MySpace sillyness. I agree that they are somewhat silly. But just like IM in the beginning, I think social rules will emerge, and the network will become useful.

Think of the first time you used IM. People were disrupting you all the time and expecting an answer right away. Then you started saying “Busy, TTYL” and people understood. The same will apply to social networking in my sense. When it’s not going to be new to anyone anymore, it will become a better tool for recruiting. Users will show different faces to different users (friends vs employers).