Hey you guys, I am starting to think about writing a web app that scrapes data and while I have a few ideas, I really want to create something that will be of use to many rather than just a few. In the past I have mainly build private price checkers, twitter intelligence tools and keyword scrapers but I want to push myself to build something that everyone can use (fo free). The current ideas are - * Clickbank product analytics tool - Pulls the daily feed from CB and analyses rising products based on gravity change and ranking change * Amazon product tool - Similar to the CB idea. Picks rising product trends and carries out the keyword research to spot easy wins. As this is something I want to build to release for free, I was wondering if anyone had any ideas for scraper and more importantly a source(s) to scrape?