product data

sources

catalogs

• Data.gov
• Datakick
• Datafiniti
• Icecat
• ItemMaster
• Semantics3

crawling

• CommonCrawl
• Diffbot
• How to crawl a quarter billion webpages in 40 hours (Hacker News)
• Import.io
• Polyvore’s Crawler System

scanning

• RedLaser

quality

• Talend Data Quality