Well i thought it would be a good idea to throw out different mmorpgs i have played/seen/wanted to play and put them into one big(ish) list. Hope it helps ^^
Maple Story
http://www.mapleglobal.com/
This game had me hooked for quite awile, its cute graphics and interesting gameplay will amuse you for hours upon hours!
Conquer Online
http://co.91.com/
Possibly the best PVP i have ever played. It actually took skill because jumping in this game made the pvp system so much more interesting aswell. A must play. The only bad thing is the game pretty much wants anyone and everyone to buy money and accounts, but still a fun game.
Knight Online
http://www.knightonlineworld.com/
Was fun for awile, but it really gets boring in the end.
Runescape
www.runescape.com
If you enjoy games where 10 year olds think they have an additional "e-hard" lvl to get to 99, then this is the game for you.
Flyff
http://flyff.gpotato.com/
Truely an awesome mmorpg. One of the only ones we could actually fly in the air. Its graphics are just as cute as fiestas, but fiestas is still more fun to me :P.
Terra Online
http://www.terragaming.net/index.php
This game was so cool when i first played! But then i got banned for being mean to a GM o.O
Gunz
http://www.gunzonline.com/main/
Its an awesome freggin shooter. In 3rd person aswell. You will enjoy it if you like shooters
SilkRoad online
http://www.silkroadonline.net/
My comp lagged to much to really play, but it seemed very enjoyable.
Martial Heroes
http://banner.martialheroes.eu/index_onrpg.html
This was pretty cool because they had some hand to hand fighting ^^
KAL Online
http://www.kalonline.com/
Not much to say, was a pretty fun game.
Space Cowboy
http://sco-forum.gpotato.com/
Looking for a kick a** Flying/shooting game? Here you go.
Thang Online
http://thang.ongameport.com/
Never really played it before, heard some awesome reports on it though.
Supreme Destiny
http://www.supremedestiny.com.my/
Meh, nothing special about it really
Eudemons Online
http://eo.91.com/
Made by the same creators as Conquer i believe.
CABAL Online
http://cabal.ogplanet.com/main.og
Seal Online
http://www.sealonline.com/
Similiar graphics to zelda:windwaker :O. Fun game!
Gunbound
http://www.gunbound.com/
Never played before, i heard it was very enjoyable though.
Enjoy it, i will update it periodically.