If you have a chance to knock off work early today and tomorrow, there's a conference you might want to catch. The fifth annual Books in Browsers conference is being held today, and the sessions are also being streamed online.
Described as "a small summit for the new generation of internet publishing companies, focusing on developers and designers who are building and launching tools for online storytelling, expression, and art", Books in Browsers tends to spend more time on the theoretical than the practical, which sets it apart from your average digital publishing conference.
I have embedded the Ustream window below. The stream will be live from 11:50 a.m. to 8:00 p.m. eastern on 23 and 24 October, and after that the sessions will still be available (or at least they were last year).