Introduction to the Semantic Web Can Librarians really save the Web? Quite a nice piece, it really does have a librarian's style to it - but - it dares to mention AI and even neural nets. Take your overdue books back *now*
RSS Quick Summary comparing the elements in the various versions. Vividly shows the creep caused by trying to keep everything under one roof (0.94), rather than allowing the use of elements from other namespaces (1.0).