Contribute to a book
O’Reilly has started their first trial for a open book content contribution project. Because it is about software engineering I think most people working in this very sophisticated and world changing domain have a strong opinion to some points. It will also be interesting how well this works for O’Reilly. The concept was and is used for a lot of smaller book projects but I think O’Reilly ist the first big commercial publisher who is using this technique.