Mods

Currently known sources for mods and maps: Advanced:
 * New Indian & Norseman Megapack V2 / Jungle & Maps at TitusGames.de
 * Tileset evergreen at TitusGames.de
 * Nihilirian Mod (on moddb) (Linux fix for nihirlian)
 * Star Ship Troopers: Last Defense Mod
 * New Science faction Linux friendly version on TitusGames.de.
 * DomiNeonic mod
 * Tileset Tropical
 * Armies of the Old World

Simple:
 * Maps Modded maps reduce NPC herding and node stacking.
 * Maps / Tiles
 * Mods / Maps
 * Modder
 * Glest: Evolution (Maps / Mods / Patches at glest.eurion.net)
 * giorgos_teiath

Mods not downloadable yet:
 * The first Exodus ( a commercial mod for glest )
 * Glest Life (a HalfLife-like mod)
 * Mars Squadron Mod (in Spanish)
 * A Glest Project Link Site and a few projects
 * Space Faction Containing new models, maps, and tilesets.
 * Four path magitech: A faction mod extending upon the existing magitech.
 * Effects & upgrades: A code mod that adds temporary effects and enhances upgrade capability.

( probably there is something at the moddb too: glestmods )