You can view a selection of guilds or clans and their sites here at Clanplanet. Some are already visible on the home page (blue link). The selection here is even more extensive and you can view more sites.
Black Goats Empire Clan with 3 Members Turok 2: Seeds of Evil GTA V Unreal Tournament Half Life 2 Counter Strike HALO 4 CoD: CoD 4 - Modern Warfare Battlefield 2042 F.E.A.R. S.T.A.L.K.E.R.
German Guardians Fighters Clan with 3 Members CoD: Modern Warfare 2 CoD: Modern Warfare 2 CoD: Modern Warfare 2 (Hardcore) CoD: Modern Warfare 2 (Hardcore)