Senh: Their revenue is not where it should be. Social networks are hot right now. It might cool off in another two years. There's no guarantee they can improve their revenue by then.
The LA Times reported that the world’s largest social network Facebook filed papers for its IPO today. Here are some stats from the article: “845 million users; 483 million daily users; annual revenue of $3.7 billion; $1.8 billion in operating income and $1 billion net income.”
It didn’t mention the number of users in the U.S. though, which is more important. Oversea traffic is cheaper and harder to monetize, even though that’s where most of Facebook’s growth is coming from.