jdMorgan - 4:35 pm on Jul 15, 2008 (gmt 0)

I see the main advantage of extensionless URLs as preserving URLs across (possibly multiple) server technology upgrades. Why take a page-ranking hit (temporary or otherwise) and be forced to install a 301-redirect when all you need to do is change a file from .html to .asp or .php?

With an extensionless URL system in place, the update is purely internal to the server.

The other advantages, although possibly minor, are still real: Shorter URLs save bytes, reduce load time, and are easier to type in and remember (eliminating the .html/asp/php extensions has advantages similar to that of AOL 'keywords' in ease-of-use).

Jim