Hi, i see you need a system that comprises a flexible backend coupled with installable browser extensions that enable you display ads on users search result pages.
I can get this done for you very quickly, am a well seasoned developer with over 8yrs experience, you can be assured a job well done.
I can build you a very flexible backend and extensions for major web browsers that would get the job done.
Would be great to hear from you so we can discuss better.
Cheers.