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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:
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NexTag Shopping:
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PriceGrabber Shopping:
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WMNH Giftshop
Geology books, slides, and prints available from the World Museum of Natural History giftstore.
North Woods Field Guides
Educational field guides for the identification of animal tracks, trees, wildflowers, and constellations.
Watered-Down Electricity
Information, text and graphics about electricity.
Sapsucker Books
Catalog of used, out-of-print, hard-to-find, and selected new natural history books.
Flora and Fauna Books
Specializing in natural history and related scientific subjects as well as art and human history books.
Earth Science Books
Used and rare geology and paleontology books, many with a British focus. Ordering from pdf format catalogs.
Aquila Natural History Books
Antiquarian, out-of-print, second-hand, and new specialist literature in the geological and biological sciences offered for sale.
Ed Rogers Rare and Out of Print Books
Used geoscience books for sale.
Double Decker Press
Road guides to National Parks in the western U.S. and Hawaii.
MS Book and Mineral Company
Recent, rare, and out-of-print books and publications concerning geology, mining history, USGS, and western Americana.