Top 2 online games (from my wiew) ( in correct order)

1. clubpenguin
2. Moshi monsters
 And here are links to those sites:
www.clubpenguin.com
www.moshimonsters.com
Hope you enjoy those sites much as I do (especialy clubpenguin, please don't mind few bugs during parties)

PS. Please comment and tell me your favourite sites. :D