I don't remember who usually does this. So my apologies if I just tromped all over some one's toes. I think I've done the Pokemonz fanpost a few times in the past so I thought I'd just get things started while I was thinking about it. [ Cuz lately I'll have a really great idea and by the time I find a pencil to write down that idea...I've already forgotten it. LoLd]
This is how this works:
If you are - or want to be - the GM of a Pokemonz league you post details about your league (keeper, rotis, head to head, AL only [why?] NL only, favorites*, special stats, whatever) and then people who are interested in your league reply to your post. And y'all organize yourselves from there.
*we did a favorites league one year that was fun: people signed on to be their favorite MLB team and then come draft day you drafted only players on your favorite team. We were the Giants so that was for realsies fun for us