You could use one of the many, many forums. Which one really depends on your interest. There are forums for basically everything. Lets say you like cooking: http://www.chefkoch.de/forum/ Or rabbits.... http://www.kaninchenforum.de/ You must use some courtesy and sensitivity though. You can discuss rabbits in the cooking forums, but you shouldn't discuss cooking in the rabbit forums. You have another interest? Search for a forum, I am sure there is one.