Just recently publish my book freely at : https://www.smashwords.com/books/view/262829 Try it for free….

Introducing Microsoft SQL Server 2008 R2 is a 10 chapter, 216 page book writtenby Ross Mistry and Stacia Misner. Microsoft has made it available as a free ebook

Here's a list of all sample chapters of ASP.NET MVC books available to the community.

The Foundation Of Programming Series Free ebook By Karl Seguin

Recently I found that e-book which might be useful to some of you. Its sub title is: “Building better software” and is written by Karl Seguin.

7 Reasons I think eBooks are an option we as developers should leverage in our learning and daily references.

It has been updated since the last time it was posted here. Available in HTML and PDF.

Very, very (an I mean it) good tutorial/ebook on C# threads and everything related to it - like syncronisation, interlock, atmoic operations, semaphors, etc....

The latest version of Steve Sartain's C#/VB .NET Coding Guidelines 100+ page ebook (PDF) is available for free download. Covers naming guidelines, best coding practices, usage patterns, and more. Download your copy while supplies last! :)

This free 330 page ebook covers the .NET framework and the C# language. Starting with the basics of the language, it goes on to cover object oriented programming techniques and a wide range of C# languages features including interfaces, exceptions and delegates. Later chapters cover practical topics...

Here is a nicely writtern eBook on threading in .NET 2.0. It also has some great examples.

A free PDF e-book - "Developing Time-Oriented Database Applications in SQL" (Morgan Kaufmann Series in Data Management Systems).

"This is a very cool threading online reference and freely downloadable e-book (PDF). Using C# for its examples, in 76 pages it covers basic synchronization, locking, BackgroundWorker, async delegates and more." Via: http://coolthingoftheday.blogspot.com