A new book from the the O'Reilly "Missing Manual" series called "Wikipedia: The Missing Manual" is today being published simultaneously in print and is being posted in the Help section of Wikipedia.
In other words, in addition to publishing a $30 version of the book in print, O'Reilly is open-sourcing a free version of the book's contents in a way that can keep its contents up-to-date -- indefinitely.
The drive to post "Wikipedia: The Missing Manual" to Wikipedia was spearheaded by author John Broughton, a registered editor at Wikipedia since 2005 with more than 20,000 edits.
My observation: I have a print version of a similar book sitting on my desk -- O'Reilly's MediaWiki, by Daniel J. Barrett -- and I can see how having this new book's contents online will help promote book sales, rather than cannibalize them. A book that serves as a manual has a certain functionality in print that, despite the belief of many, is unique when working in an environment that is new and complex. My copy is dog-eared and sitting there, just where I want it when I'm trying to figure out a nuanced hack. It's like another monitor, dedicated to some esoteric stuff.
Having a resource that is simultaneously online and in print adds to the functionality and productivity-enhancing roles of both.
Better still would be also having a video-enhanced version.
[Cross posted on Rex Hammock's RexBlog.]
