Hypertext Style: Cool URIs don't change.
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http://www.w3.org/Provider/Style/URI
http://twiki.org/cgi-bin/view/Codev/CoolURIsDontChange
URL as UI
Fighting Linkrot
URLs are for People, not Computers

cgi-bin/.html/.shtml/.cgi is for computers/admins, not people :)

example.com/products
example.com/products/kitchen
example.com/products/food
example.com/menswear
...
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