I can probably help some - ages ago I had set up a few wiki-based experiments on debate, but they never did amount to much. I'm also pretty interested in facebook game design, I follow a few blogs on the subject, have stacks of design ideas in various notebooks, and once made a prototype for the company I work for (though flash and web development aren't my primary domain of expertise).

My track record of getting this kind of project done on my own is, um, imperfect, though. I tried helping lesswrong development a year or so ago, but after a week of fighting with configuration files and versions of the database library (was it mysql? I think so) and github, I put things on hold and never picked them up since. I can certainly understand when Eliezer and Michael Vassar complain about getting a lot of offers for help, but having very few of them follow through.

In the meantime, I did improve my skills in Python web development and in using git, so maybe things wouldn't seem so complicated if I tried again now.