This is indeed a good idea! Congrats.

You may like to improve the copy on your web page. The first thing that's not immediately obvious is what links are displayed. It might be better to write "it uses their individual search queries to display _additional matches from your site_."

And you may like to change the image on the front page. Nothing wrong with stock photos but this guy looks as if bouncing makes fun. I don't think that's the impression you want to create.