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.

German Ghost Army	Rushing-Alliance	German Death Angels
The German Navy Seals	Advanced Recon Commando'	The Patriots
Psycho Intelligence	La Familia	The German Eagles
Legacy of Khaos	unknown Rivals	Division 300
No Self Kontrol	The German Dragons	The German Devils