Alexander,
Thanks for the invite (when you have more) I really appreciate it. For the free email, what the forum administrators did in
www.mapalad.org is to give it away only to members with 100 or more valid posts. It definitely stirred up a lot of good informative posts from the board by people wanting to get the free email. You might want to check out
www.mapalad.org to get some more ideas. The forum administrator there is "babynino" and he is quite good too.
Mark