Froogle:
Developed by Google, Inc. One of the most promising price comparison sites to date.
BizRate:
One of the largest price search sites. Over 30 million products listed.
Shopping.com:
Child of Dealtime and Epinions, now merged to provide you with three shopping search engines that feature your products separately, yet the same.
Yahoo Shopping:
Complete Yahoo Shopping data feed creation and maintenance solutions.
MSN Shopping:
Complete MSN Shopping data feed creation and maintenance solutions.
NexTag Shopping:
Complete NexTag data feed creation and maintenance solutions.
PriceGrabber Shopping:
Complete PriceGrabber data feed creation and maintenance solutions.
VintageAds4U
Specializes in original vintage advertisements from 1900 through 1950 organized by category.
The Paper Trail
Features a broad range of topics.
Adaholic.com
Features advertisement pages from magazines. Includes category listings and search feature.
Retro Bargains Vintage Ads Shoppe
Specializes in original magazine advertisements and covers. Includes search and listings by category.