List of Free to Play MMOs

-Ashen Empires
-Eternal Lands
-Fly for Fun
-Ghost Online
-Last Chaos
-Maple Story
-Monster and Me
-PlaneShift
-Regnum Online
-Rappelz
-Ragnarok suggested by: Stratux
-Rubies of Eventide
-Runescape
-Scions of Fate
-SilkRoad Online
-Space Cowboy Online
-SupaSupa
-Supreme Destiny
-Tales of Pirates
-Perfect World suggested by: Devilinsideme
-Q World suggested by: Devilinsideme
-Tantra - Kathana III
-Trickster Online
-Free Infantry suggested by: SnakeTheFox

I've played almost all of those games, but ill leave you guys the pleasure to discover them. Feel free to give your opinions on them. Ill add more as I discover or remember more :P.
Have fun !

Nice list, I'll make it into a sticky, and if anyone adds any more I'll edit em in to your original post, giving them credit of course.

Well, its not an MMORPG by definition, but it has elements of them such as purchasing equipment, armor, weapons ect. and competing against up to 100 players in some zones at any given time:

http://www.freeinfantry.com

Saw a screenshot, reminds me of CS:2D but with a futuristic tone, and more options.

I added it to the list, since it has some characteristics of an MMORPG as you said, also gave you credit for the find.

free infantry isn't too bad, i like the graphics, considering the free part.

Great list, I haven't seen many of these.
Now, let me burn the midnight oil here.

I like the game Ragnarok

Here's mine;

1. http://www.perfectworld.com.my
2. http://www.qworld.com.my
3. celestial destroyer online (don't have the website yet)

I just added them.

I'll probably add some more when I get the chance as there have been a lot more MMORPGs released since the creation of this thread :)