Once again, title explains it all:

My personal favorite:

Thera, Legacy of the Great Torment

Download Medieval 2 Total War Mods here:

Without Kingdoms Expansion: http://www.twcenter.net/forums/forumdisplay.php?f=211

Requires Kingdoms Expansion: http://www.twcenter.net/forums/forumdisplay.php?f=556

Title explains it all-

I started this group for two reasons, one is to for beginners (the non-enlightened) to see how other people play Medieval 2 Total War, and what kind of game it is. The other is so people are able to share their experiences from the game, (provide screenshots, discuss a strategic option, ask for advice, etc.) from the regular game of Medieval 2 Total War and from modded versions of the game. Here you can meet other people who play this amazing game, and possibly schedule online matches. All in all, this group was created just to talk with other Medieval 2 Total War Fans.