adsbuilder broke 200 members today!!!

I am really excited because my site http://adsbuilder.info has reached 200 members today!!! My other three sites are still pretty small, but they are growing aw well. They are:
http://adnetptc.info
http://divingforhits.info
http://noteclix.info
If anyone has suggestions on how I can make them grow faster, please let me know. Also could use information on getting more advertisers. Thanks.