There is an opportunity to advertise GenJ on Stackoverflow.com for free. Have a look here: http://blog.stackoverflow.com/2010/06/f ... ond-round/
If someone could create a 220×220 image advertisement, we could post it there.
If you don't know how to create a banner but have an idea what it could look like, please post it here. Someone else could take the idea and create the ad.