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.
Redjellyfish.com
Environmental super site with a directory of natural, organic, recycled, and cruelty-free products. 10% of revenue is donated to environmental groups.
The ECO Directory
Linking the Green Community with over 15,000 listings. Natural products, alternative medicine, natural foods, eco services, green investing, and hemp products.
EcoBusinessLinks
Directory of eco-friendly products, services and resources, including organic food, seeds, hemp, housewares, recycled products, bodycare, baby products, vegetarian recipes, free solar panel price surveys, and news sites.