NDAs prevent me from talking very much about my favorite project at work, which is a pity because it's real interesting: The world contains several repositories of electronic information whose size and value are comparable to the Web's, but which are generally not usefully available for search and browsing, but could be. We're working on it. My TAG cycles the last couple evenings have gone into the work-in-progress on redrafting RFC 2396, which specifies what a URI (no, not URL) is.
I emitted some prose on the subject today. (Warning: highly technical).