Another idea is to write an article about how in the dot.bomb era the Internet is returning to its roots Volunteer run sites created out of a passion for the topic and payed for out of their own pockets. If you've got a desire to do some regular writing, and want to take a stab at so-called 'viral' marketing of internet culture, consider taking command of the buzzbits mailing list . It was originally intended to be a review of the week's media events, but really the sky's the limit. Right now it's suffering from a lack of attention. Get people all annoyed and argumentative by pitting left vs. right.
Discussion is absolutely vital to the site.
Sign up under a different account and argue with yourself. Anything to help draw in other people is useful. Post comments to other weblogs and discussion areas. Maybe you can donate money for promotional activities. That's pretty cheap for such a complex site, though it does eat into David's ability to promote the site.