MMORPGs are great time killers, you'll love some, and hate a few. Most of them are great, free, and graphically perfect, these qualities have spread all over the world pouring MMORPGs in each gamer pc

My vast MMORPG experience allowed me to know how they work, whats the special features in each one and how smooth it runs, I'll name one free MMORPG that catches all the essence and fun that should have in every single game: Silkroad Online

There's nothing more relevant to say about the game than: Almost perfect (we won't have another perfect game so soon since "The Legend of Zelda: Ocarina of Time" vanquished everyone)

The world is not completely lost, I experienced a few good MMORPGs that everyone should try out, but unfortunately every game of that genre suffers from a great evil: Boredom, they don't focus on improvements for mid levels so we can keep going up with new improvements, so the grind comes and kills everything :(

So I strongly recommend Silkroad online (a must play, specially now that Europe expansion came up, a new variety of things to do) , World of Warcraft (unfortunately its pay to play, and thats a punch in the pocket), Rappelz Epic3 (Gravity, they did Fly for Fun, but the grind comes and kills that game too), Granado Espada and if god watch over the American continent players, I'll be able to play Cabal Online and Im sure Im going to strongly recommend that one too :P

Keep playing! Thats the magic of us, gamers, recycling (specially us pc aficionados ;) )