We will be performing necessary maintenance on the forum and related hardware from Satuday 25th of September onward. Users might experience some downtime, which we will ensure that it is limited - if at all noticeable.
Click on quick links and click on "your control panel." Look at the second panel and see the word "Networking." You should see "social groups," click on it. The search for the group you want to join and click on it. Scroll down and you should see at the bottom of the page "join group." It'll ask for a confirmation and you should have joined.