Are there any adsense for search alternatives for a site that may fall outside the TOS of Adsense (and Overture)? Again, I'm only interested in ads that would be displayed as a result of a user initiated search, not contextual or Adbrite types of ads.
Any popular ppc search engine like miva, looksmart or kanoodle all have publisher programs that work very well with keyword targeted ads. They all have seperate TOS that you will have to check to see if the site falls under it. You can usually send info like, IP and search word and receive an xml result page in return. Wish some fancy PHP Parsing you can use those results anyway you wish.
Thank you very much for the input! So many of the other partner programs I looked at all relied upon Overture advertising so they were likely out of the question. Miva might be promising although I would need to ask about their TOS as I could not find any posted on their site. That list is definitely a good start, but I am open to any other ideas as well.
Adsense for search simply involves adding a Google searchbox (with or without their logo) to your website. The results served up by Google include a mixture of Adwords and organic results just as if the user had done the search from Google in the first place. You get some unknown percentage of the revenue if the user clicks on one of the sponsored results that were served up. google.com/support/adsense/bin/answer.py?answer=9879&topic=144 Most people seem to report very little in the way of success with the program, but I thought that it might work out well for a project that I was thinking of undertaking - if the site would comply with Adsense TOS.