ActiveShopper - Comparison shopping site that that also offers its content through an Internet Explorer toolbar. The toolbar automatically scans, locates, and compares prices for items viewed on e-commerce sites.

Become - Search engine with a large index of material related to shopping, such as buying guides, reviews, articles, specifications, forums, merchants.

Best Buy Finder: Software - A software program that simultaneously searches the top online comparison shopping sites for the lowest prices.

Best Web Buys - Comparison shopping services for books, bikes, music and videos.

CNET Shopper - Searches for the lowest prices on computers, software, office products and electronics.

DVD Price Search - Compares DVD prices from multiple stores.

eBuyingguides.com - Buying guides for over two hundred products, including links to rated shopping sites and articles on how to buy.

Google Product Search - Search engine which shows photographs of relevant products. Searches can be restricted by price, type of good, and retailer.

Home Values - House prices by address, ZIP code and city as well as home value trends over a 6-month period.

mySimon - Comparison shopping site presenting product listings from stores, organized categorically.

Nextag.com - Price, tax and shipping comparison guide. Product and seller reviews.

Octopart - A search engine for electronic components. Search for price, spec, and inventory information from multiple distributors.

PriceWatch - Searches for the lowest prices on computers, computer components, software and electronics.

ShoppingAisles.com - Compare prices on music, DVDs, VHS, books, magazines and video games.

Shopping.com - Compare products, prices and stores.

ShoppingSpot - Shopping and consumer information portal that simplifies the search for shopping sites by category, product reviews, comparison shopping sites and coupons.

Shopzilla - Shopping search offering price comparison, reviews and store ratings.

Street Prices - PC component, PDA, and digital camera price index with graphs of prices over time. Includes e-mail alerts when an item drops below the price specified.

Yahoo! Shopping - Includes product information, price comparisons and merchant reviews.

Comparison Shopping on Sale - Forbes.com - As shoppers reject the malls for gifts found on their LCD's, comparison-shopping sites have become white hot. (December 14, 2005)

Forbes.com Best of the Web - Reviews of 12 Major Comparison Shopping Sites - December 2005 reviews. (December, 2005)