Etag

[bob]

to help with caching and bandwidth usage we should look at passing an Etag http header for pages. we could make this out of the current revision number or indeed last edited date.

http://perl.apache.org/docs/general/correct_headers/correct_headers.html#Entity_Tags http://developer.yahoo.com/performance/rules.html#etags

possibly useful for the index pages.

this may of course not work for us.