http://www.shopwiki.com
2. Quick Shop
http://www.quickshop.com
3. Shopping.com
http://www.shopping.com
4. BizRate
http://www.bizrate.com
5. Pricegrabber.com
http://www.pricegrabber.com
6. DealTime
http://www.dealtime.com
7. mySimon
http://www.mysimon.com
8. NexTag.com
http://www.nextag.com
9. PriceSCAN
http://www.pricescan.com
10. Buyers Edge
http://www.buyersedge.com