Try League Of Legend ! Its just a suggestion..

I don't play online games anymore. Instead, I play games like Sims 3 or Minecraft (which you need to buy the game or the membership). Though if I do play online games, I check out Kongregate. That website has tons of games (you should try Epic Battle Fantasy 3 or Epic Battle Fantasy 4).

if you are scearching for mmnrpg then WORLD OF WARCRAFT is the thing.If you are looking for page games espacially animes like naruto then try joining narutobase.net ..rpg is pretty good there..xd

My favourite online games are:
-Riddle School (1-6)
-Transfer School
-Bomb It
-Poptropica

My brother's playing one developed in Korea but I forgot the name..