The Daily Beast dips its toe in the water:
On a typical publishing schedule, a writer may take a year or more to deliver a manuscript, after which the publisher takes another nine months to a year to put finished books in stores. At Beast Books, writers would be expected to spend one to three months writing a book, and the publisher would take another month to produce an e-book edition.
The Dish is still working on a View From Your Window book. It should be ready in time for the holidays. Ezra Klein adds his thoughts:
Writing doesn't take very long. Quoting doesn't take very long. But assembling information used to take an awful long time. It required a lot of phone calls and microfiche and faxes and walking over to Brookings and paging through newspaper archives and begging a source at Gallup. Now it doesn't take much time at all. That allows me to be the equivalent of a very fast columnist, and there's no reason it won't allow others to become very fast book authors.