How do I find clubs worth joining?

Four ways, and they answer different questions:

• Hot — clubs with the most activity right now.
• New — recently created clubs, which is where a small club is easiest to become part of.
• Categories — filter the list down to a subject.
• Search — by name, if you know roughly what you are after.

A club's page shows its member count, its activity and its level before you commit to joining, and public clubs can be read first.