As the functionality of the web is increasing, so does the opportunities and methods of making money online. Everything is going commercial at the internet. Marketers seem to have become more creative than ever in promoting there product. One of the marketers would come with the idea of selling background space at twitter where another with buying signature space at the forum where a member has hundreds or may be thousands of posts.
This is a win-win situation for all. Makerketer who are not good content writers have a chance to market there products without being good at writing or without hiring a copywriter. Those who are members of forums may make money by selling signature space to the marketers which will appear at the bottom of each of there posts. Forum owners will enjoy more members as people see a way of making some bucks as they contribute to the forum.
I saw a few forums where people were selling there signature space. That bring the idea in my mind of providing the sellers and buyers a plateform which will be convenient to both of them. Sellers will be able to signup as the publishers and buyers could easily seek them and choose the top-poster of the forum of there relevant niche. Moreover, the chance of getting scamed will be minimum.
That idea being in my mind I searched the web to find out relevant meterial.

The guy there came up with the same idea!
Adspace seller script is off the market but might be brought back.
Traffic redirector script: Not really relevant but might help.