I dunno, I think Amazon has a pretty robust filtering/breadcrumb system.

Search for "WRT54GL" brings up the top hits, with the "Department" sidebar showing (hierarchically) "Computers & Accessories" and then "Computer Routers." If you then click on "Computer Routers" you see all the items in that category, with breadcrumbs at the top showing:

Code:
Electronics › Computers & Accessories › Networking Products › Routers › "wrt54gl"


You can mouse over the "wrt54gl" to remove that search string from your query or you can go over to the left sidebar to filter by brand, features, average review, etc.

What's missing?
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- Tony C
my empeg stuff