Facebook Up, MySpace Down
As Facebook continues to grow, MySpace is getting crushed:
The net research firm revealed that in May 2010, just 3.3 million web users visited the social network, compared to 6.5 million in May 2009. That's a 49 percent drop.
The big problem for MySpace now is perception - with that kind of reported drop, it's definitely "out", whereas Facebook is still "in". A new site might challenge Facebook at some point, but it's hard for me to see how MySpace will ever come back.