After lunch (waaaay over my head) (not the food, the conversation), I went to hear what O'Reilly is up to in terms of new book publishing techniques.

Rael Dornfest did a very zippy demo of Aardvark (not available online), which is a combination of a wiki and a blog for authors and publishers that exports to formats for publishing.  You can write your book in the right format, with everything beautifully tagged, and your readers can read it chapter by chapter.  The point is that everything is becoming atomized online, so let's publish in an atomized way as well.  Very interesting.