There's lots of ways to make money scraping. You could sell your Scraped lists, sell ur services, create backlinks or use ur Scraped data to make a whole new service never seen before.
If you can get me all Tlds Whois lists daily I will pay you 40 a month.
Make a site and use ur scraping to get it up googles rankings backlink in.
Thats a few ideas there will be far more.
Hope this helps
What data have you been scraping?