I'm offering banner ads on my very busy forums with over 20.000 members alexa less than 35.000 PR2 over 1500 unique visits a day.
If you are interested please let me know, I will be more than happy to give you more info.
Only 468 x 60 banner at this time. Price starting at $5 a month guaranty 15.000 impressions.
Thank you :)