To me, the forum is like Google but with a personality. You type a question and any number of different sources will give you an answer. Some may be bang on, some may be complete rubbish and, very much like Google, some will make you wish you hadn't bothered in the first place and have you running the see Dr. [insert surname here] like you should done from the beginning.
noun:
forum;
- a meeting or medium where ideas and views on a particular issue can be exchanged.