TIP: Check out the groups and pages section for more conversation options. When you click on them, you will see something that says 'my groups' (or 'my pages' if that's what you clicked on). That is only the groups/pages YOU started. Click on SUGGESTED groups/pages to see what else is out there to join. Then there is an option for "Joined" groups/pages. These are ones started by OTHERS, but which you have joined.
Anyway, check 'em out!