Manning Publications has a program called MEAP. MEAP stands for Manning Early Access Program - basically buying a book as a PDF before the paper version is published, in fact, before it is even finished. Good for new technologies like ASP.NET MVC of Silverlight. Now I know that electronic versions have a marginal cost compared to paper versions, but Manning are taking this to extreme levels; In April, I bought the MEAP title, The Art of Unit Testing, $24.99 By August, the completion of The Art Of ......