How to go about making money from page scraping / data mining? [on hold]

I'm just about to finish writing a web crawler, parser, and indexer that I've been working on for a while now. These three programs work in conjunction with one another. My intentions for this project were to make a set of utilities I could use to download pages from specific sites with, parser over, extract any specific data anywhere on those pages, and then index that data in a database afterwards.

So, with that being said.. I'm wondering if anyone has ideas about how I could use these programs to potentially make a little extra income on the side? I developed these programs in c++ but I also have a very strong understanding of website scripting languages (PHP, perl, js, etc). I know that I will probably need to build a website which handles the mined data and what have you. However, I'm having a difficult time coming up with an idea.