Users on Chat or our Showdown server will almost always help you counter any Pokemon you need. Otherwise, you could post on how to beat them if your not sure on the actual Pokemon move pages, if you can't find anything around.
Again, this seems like something likely to happen if the forums go up (heh, there are a lot of those lately). If you can be patient, this may be used yet. But right now, it probably won't. the Db isn't a competitive oriented site. If you want one, look for Smogon