Attention: The social-web IPO window is now closed.

Am I the only one who thinks this is a good thing? I was getting tired of all the Silicon Valley "social" start-ups. Maybe new start-ups will focus on more important and more valuable products and services.

<i>&#62; Is Facebook just a moderately successful ad platform?</i><p>That's the direction it's going. I'm not sure that's all it could be.

Now?

Yammer is so lucky that Microsoft bought them.