Please suggest how clickbank affiliates can create a script for displaying contextual products and services related to content of any page on their site. also how clickbank affiliates can make a searchable database of cb products including their affiliate id
For the first question, the yahoo keyword/term extraction API might come in useful, which can be found here http://developer.yahoo.net/blog/archives/2005/03/term_extraction.html That should cut out the most time consuming part of writing a keyword extraction system yourself.