Auto-comment system (1405297)

I am looking for a system/script which will automatically post a comment of my choice on certain dynamically selected pages. I want the pages to be dynamically selected based on a search-word. The results of the search can easily be sorted(im very sure this is possible through the URL). Then I want to add my comment to the top 5 results. My comment is basically a small amount of text and an url. I would prefer this to be a web-script, but I am open for anything.? I don't want to make a big deal out of it. This is more of a test, and depending on the results I could be looking into making additional requests similar to this one.