Looking for a text links advertising script
I'm looking for a solution to start selling text links on my website. I'll try to explain what I want/need, hopefully someone can give me some clues or links to a commercial solution.
I'll like to give advertisers a chance to buy words from my content, example.
Advertiser will buy the word: cars, so everytime the word cars appears on my content, it will have a link to their website.
I need a solution where the Advertiser check links to their website daily and per hour.
As an admin, I suppose I can set the price per word and price per link, etc.
If someone knows a script like this I'll like to check their features and if that doesnt work for what I need/want then start looking for a custom solution.
Thanks for your help and links will be really appreciate it.
Mods, please feel free to move this thread for the proper forum if you think its necesary.