BizRate
http://www.bizrate.com/
DealTime
http://www.dealtime.com
Froogle
http://www.froogle.com
Kelkoo
http://www.kelkoo.co.uk/
MSN Shopping
http://shopping.msn.com/
mySimon
http://www.mysimon.com/
NexTag
http://www.nextag.com/
PriceGrabber.com
http://www.pricegrabber.com/
Yahoo Shopping
http://shopping.yahoo.com/
Buyer's Index
http://www.buyersindex.com/
Dulance
http://www.dulance.com/
ePublicEye.com
http://www.epubliceye.com
PriceScan
http://www.pricescan.com/
AddAll
http://www.addall.com/
CatalogCity.com
http://www.catalogcity.com/
Google Catalogs
http://catalogs.google.com/
Specialoffers.com
http://www.specialoffers.com/