URI and Web Architecture Revisited

I have written down my thoughts on the URI's identity issue and some web 
architecture issues at "http://dfdf.inesc-id.pt/tr/web-arch".  The 
writing mostly starts from the issue of "information resource" and 
httpRange-14 but touched on how we are suppose to view the web architecture.

I think that I had contributed a great deal to bring the issue of 
"information resource and 303" to this mailing list.  But now I think 
back, my understanding in the past appeared to be wrong.  Hopefully, 
from this position paper, you may understand why I have changed my 
thinking so it may help you to understand the topic as well.

Xiaoshu