To get involved...

Register, log in. Complete your profile (as much as you want). Join the "Node:..." group you want to be aligned with. Post a brief introduction in the "Introductions" thread.

Please, join also the "Announcements" group.

If you do not feel like joining any of "Action:..." groups, just go and make your own.

Find three people around you, who you'd invite here to look around and possibly join.

Repeat previous action as needed. :-)