I found this stuff about the meaning of URIs interesting
this about identity of objects referred to by URIs – an article by Tim Berners Lee very interesting.
And this about the reference of uris (is it the page or is it the subject of the page)
I’ve always found the use of URI’s to refer to things which aren’t documents deeply disturbing. This seems to confirm my fears.
Also a new photo management tool by google is very cool (I know that google is the new microsoft, but I don’t care).