The forums are where you can chat with other users and give us feedback.
The forums work pretty much as you would expect. You can post a topic and other people (and you) can post replies. Right now all forum posts go into General Chat. There are no topic limits in General Chat and, as the name suggests, this is where you can chat about whatever general topic you feel the need to talk about. As this forum fills up we will be able to see what topics are most important to you and create specialist forums for those topics.
Groups can also have forums. They work in exactly the same way as the general forums but are restricted to the group in question. If someone suggests that you should post in the Help and Support forum you will find it in the help and support group.