It's just a Google custom search. You could make money with it if you SEO'd the hell out of it, probably, but if you're posting the link here you're probably not good enough at SEO to actually make serious money doing this. I don't think that this is a particularly profitable niche either. You want to find something where Google pays you $1 per click.
Keep on trying though. For this type of marketing discussion, I'd recommend digitalpoint.com. The most commonly said marketing idea here is "Make something people want and they will tell their friends about it."