The site MODDB   (game MOD DataBase) is dedicated to keep track of all game MODs and add interviews and reviews about them. This would give you an idea on what can be done with a game by simply adding a game MOD to it.

You can check out the game MODs of the previous years and see what the community thinks about them. Who knows, you might get an great idea of a MOD and actualy have your name appearing in this site ?

Top Game MODs of 2002

Top Game MODs of 2003

Top Game MODs of 2004