SoftScout (http://www.softscout.com) is a business software directory that has over 20,000 software titles from a variety of industries. We just added your banner ads to supplement our Google Adsense Revenue.
We use your keyword parameter to pass a search string or current category to your banner. Most of the time we get pretty good results as to the content of the ad.
It does seem like when a match isn't found the same 3 magazines pop-up for our site (for instance: (Website Magazine, Successful Promotions, Target Marketing)). It would be nice if these would randomly change if no match is found.
Otherwise - I'm excited about your service and to future earnings together!
Joined: 2008-02-12