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:
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PriceGrabber Shopping:
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The Gallery System
Provides hanging systems which consist of picture rail and hangers.
WallBuddies
Offers a hanging system for individual frames that allows artwork to be level and flush against walls.
Picture-Plumb
Manufactures a tool that marks the hanger nail location on the wall.
Hangers & Hangman
Producer of an adjustable picture hanging system, and specialized aluminum frames. Includes an informational page about picture hanging techniques.
Walker Display Systems
Information on this art and textile hanging and display system. Includes a downloadable product catalog.
Hunt Picture Hanging Systems
Supplier of rail based hanging systems. Located in the UK.
Attach-It Hanging System
Offers hangers and leveling system designed for use with drywall.
The Swan Company
Specializes in Victorian style picture rails, medallions, hardware, and fabric cord hangers in a variety of styles and colors.