Popular social networking sites in eastern europe?

I thought it would take me hours going through google trying to find some websites, so i thought i'd try my luck here.
I would have asked on a russian or ukrainian yahoo, but looking at the bottom their doesn't seem to be one.
I suppose some of you will say they use myspace and what not, but surely their must be some good social sites they use out there.

(when i say eastern europe, namely Russia, Poland, Belarus .etc)

poland:

http://nasza-klasa.pl/
http://www.fotka.pl/
http://grono.net/


Belarus:
http://spatkanne.by-eu.com/index.php

Russia:
http://odnoklassniki.ru/