From the Microsoft Press Blog;
No doubt, our blog is a great site for announcing new books and other quick bits of news; however, we really needed a great landing page to host our free eBooks in an elegant, easy-to-browse way. Our coworkers at the Microsoft Virtual Academy provided the solution. It’s a perfect place to land, since many of you already consume the Jump Start sessions, live events and archived courses from MVA.
So, check it out here. As each new book is released, we’ll add it to the page.