Where can I find HAM forum, newsgroup, discussion, chat room, etc., either formal or light hearted, apart from this one?
closed as too broad by Phil Frost - W8II, Kevin Reid AG6YO♦, PearsonArtPhoto Aug 27 '14 at 13:56
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
QRZ.com has forums, news postings, classifieds and similar to what you are looking for.
radioreference.com has forums, news, and similar with lots of Amateur discussion, but is not strictly Amateur specific. You can learn a lot from this site.
There are many more to be found on the Google and you are likely to find some that are more appealing to you than others.
International newsgroups: rec.radio.amateur.* and there are regional newsgroups related to amateur radio. Google+ also has some amateur radio related 'communities'.