ספר פנים יפות?*

Here is something I found interesting on Rav Aviner's blog (I find that phrase alone very interesting).  It's called the Ten Plagues of Facebook, and lists ten problems with Facebook.  I don't use Facebook, so I can't evaluate his claims all that well, but a lot of people i know and respect (including most of you) are on it, and I have heard some of the positive aspects of it as well.

So what do you think?  Is he being fair?

* The title is a pun - that's not the real quote from Pirke Avot.