If making MMOGs would be so easy, than everybody could do it!
Start learning normal Client/Serverprogramming than you can think about games with more than 4 players (and making a game with 4 players over the internet isn't that easy). If you can write a game that handles more than 30 players you are my hero and if you can write MMOGs I call you GOD!!!! ^^
Fakt is, that it's nearly impossible for us to make such professional Software cause it needs very good knowledge about multiplayercoding!

PS: You can use the forumsearch, there are a lot of threads about that!

Dark_Samurai