would be best if the .com was undeveloped and you made a site on it,
also it DevelopersForum.com and .net was not developed but taken?
then you should definately develop, but if they are developed leave it alone imo or make a blog
---------- Post added at 05:10 PM ---------- Previous post was at 05:08 PM ----------
OK just checked those that I posted above and they are not sites,
so if I was you and was into development then I would make that a forum asap!