For your reading pleasure, I just posted the second draft of Chapter 2 ("Uncovering the Mashup Potential of Websites").  It is a thoroughly rewritten version of the first draft,  a much deeper piece of work.  It did take me a lot of rethinking to get this 39 page chapter in order -- but I think you'll like it.  This concentrated effort also accounts for my silence on this blog....

At this point, I have written a first of draft of everything in the book, except Chapters 10, 11, and 12.  (I have a pre-first-draft version of Chapter 10 online that I've uploaded so that my students can work from it.)

Update (2010-03-03):  The link to the old version of Chapter 10 no longer works.  The link to the published version of Chapter 10 is available.