Very nice project! Can you tell us a little about your tech? How did you crawl Amazon's USB listings, did you use their API? And then how did you figure out if

Very nice project! Can you tell us a little about your tech? How did you crawl Amazon's USB listings, did you use their API? And then how did you figure out if an item has the feature you are looking for: What was your parsing and extraction logic like? Finally, how often are you refreshing your index? I'm always interested in projects that have a clear path to monetization.