It seems to me as though there isn't. Its been my observation that after a while internet forums come to be dominated by posters who hold mostly similar views on serious topics of conversation. Something seems to happen to people when they log on to the internet so that while in real life the point of serious discussion (politics, religion, philosophy, history, etc) is to be exposed to and consider ideas you've never encountered before, online the point of discussion is to impose your "correct" views on other people. Whereas in real life discussion is an exchange, on the internet discussion is a contest. The result of this is that while a forum may start out with posters who have a wide variety of ideas, after some time people with one set of ideas will drive away all the people who have ideas that contradict their own. After this point if someone posts an idea that goes against the views already held by the site's posters on a particular topic then the result will be furious universal rejection, whereas if someone posts an idea that supports the site's already established views there is universal support. All the forum is at this point is a bunch of people who hold the same views agreeing with one another, there is no introduction of new ideas into the community and so its member can make no intellectual progress. Not only that but after a thread has been going for awhile and received several posts few people have the patience to read everything that has been posted so far and often just read either the opening post and/or the most recent posts in the thread (if those), and either end up repeating ideas that have already been discussed in the thread or the discussion goes off on a tangent and wanders far away from the original topic. In addition to this problem there is also the fact that in ordinary face to face conversation we use a number of non verbal cues that can not be effectively replicated in pure text conversation. Thus people reading a post will often jump to incorrect conclusion about what ideas the poster is actually trying to communicate or the tone he is using. For example the reader might imagine that the poster is using a sarcastic and scornful tone and be angered whereas really the poster wasn't trying to be anything of the sort. This is why it seems to me that for the most part the internet is really only suitable for lighter topics such as What's Your Favorite Videogame?, or Post Pictures of Cute Animals, or the ever popular Which Cartoon Characters Do You Want To Have Sex With? ^^