https://www.dotnetzone.gr:443/cs/blogs/birbilis/archive/2009/02/15/free-e-books-from-microsoft-press-on-linq-asp-net-3-5-and-silverlight-2.aspxAs mentioned at Microsoft Visual Studio 2008 Learning Portal , this free e-book offer includes 1 chapter (and also additional chapters if you register your information) from each of three recent publications from Microsoft Press : • Programming MicrosoftelCommunityServer 2.1 SP3 (Build: 20423.1)