[mshac]

Beechtalk is an established, successful forum that we can look to for examples of what works. For one, it doesn't log you out after five minutes of inactivity like this site.

They have "Sponsor" members who get a square on a banner that's on every page. Sponsors also get the right to post listings in the "For Sale" section. They use an algorithm that lets frequent and trusted posters post For Sale listings for free, but they have a $50 paid listing option for those who don't meet the criteria.

Beechtalk Sponsors pay $200 per month. The traffic on Beechtalk is easily 20x that of 337skymaster.com, so you couldn't charge $200 per month, but maybe $10 per month or so?

I just checked with an internet traffic report company, and Beechtalk averages 5600 unique visitors per month, while 337skymaster only averages 234 unique visitors per month. So we do about 4% of the volume.