For my web2py readers, this is not "breaking news", but for the casual blogsphere reader, I am happy to announce that Massimo Di Piero, the author of web2py, has put the official book online, if you want to learn to develop dynamic web applications in as little as a couple of hours, don't hesitate to visit the web2py website, not only that, but you will be developing web applications using the best programming language in the galaxy
The web2py book is located here: http://www.web2py.com/book
Enjoy

