I have recently started playing my first MMORPG. It is the free to play MMO from NCSoft called Dungeon Runners.
[URL=http://www.dungeonrunners.com/]http://www.dungeonrunners.com/[/URL]
It is a pretty generic RPG with only three character classes, but for free you can't complain. There is a pay for version which costs 5.99 a month to play. This comes with extra items, weopons, armor, abilities and quests.
The free version has a lot to offer on its own, but you do get a lot of membership only items as you travel. You can upgrade to paying membership at anytime without losing your current free characters.
The quests are designed to be accessible for playing on your own or with a group. The dungeons difficulty id based proportionately with the number of people in your party. They still challenge you if you no matter how many people are in your party.
If you have any comments on the game post them here.