Earlier thread about Fitocracy invites
So I made an SDMB group, but I’m not sure how to invite people to it. I think if you search for the group, you can ask to join?
Once there are a few in the group, I’ll set us our first challenge! 
We’re currently in one… add yourself to “Followers of Cecil”.
Also, since you’re a challenge-setting type, I’m making you an admin as soon as you join. 
Thread closed at the request of the OP.