I am playing around with advertising on the site. At the moment I have implemented a plugin for injecting Google AdSense Ads at the top of topic list just to see what happens.
The plugin also has an option to only show ads to users of a particular “trust level”. For example, it could be configured to only show ads to users that are not logged in. At the moment it is set for trust level 2.
What would be more interesting though is more relevant advertising. You know, Clarion related stuff!