I allready started the lottery and active prices as you mentioned, also im trying to put out all kinds of other shit that might be intresting for guild members. We have added it to guild info and guild message of the day.. Not much more we can do.. I have just a fewe ideas..
1. send a mail to every single member..
2. message of the day: register by february or face a horrible pain aka kick..
3. get some boobies on the frontpage..