What is it about WebWork that makes it so hard to write books about? I remember talking to Kris Thompson (a.k.a. the guy that quit blogging) last summer about WebWork in Action. At that time, it was "almost done". Over a year later and it's still "due out next month" (or is it done?). Almost as bad is Matthew Porter's WebWork Live, which was started late last year. I remember Matthew saying he expected to finish the initial version in March - and there's still not an ERP almost 10 months later.
Here's my guess: the Manning book has been done for months, but the publishing process takes months. As for Porter, my guess is he's too busy providing outstanding support at Contegix to work on the book. Any good conspiracy theories out there? Maybe WebWork has too many patterns that need to be documented?