I gave a quick look and I didnt see a photo contest, so I thougth I would suggest having a pbase photo contest each month. And to give an encouragement, have prizes. Not something to expensive to pbase, maybe free upgrade for a year to the package one up, like 200mb a year instead of 100mb or something. This could also draw more attention to people that are not members. :0). Also spread the word about pbase.com
Just an idea, have a good day, GerryDavid.