Free Programming Books

There was thread on Stackoverflow which contribute the list of free programming books. The Original Source for these free books as below:
 List of freely available programming books
Further I found a nice maintained list on GitHub – Free programming books and subset of the list is here:

Parallel Programming
Partial Evaluation
Professional Development
Programming Paradigms
Regular Expressions
Reverse Engineering
Security
Software Architecture
Standards
Theoretical Computer Science
Web Performance

Orchard CMS Learning stuff.

Recently I try to learn about the CMS which are developed in Microsoft technologies as there are lots of mature CMS available like joomla, Druple etc. These are based on the PHP and mostly hosted on apache(Linux based web server). Though I am working on .net stack so I decided to start with some open source CMS developed in ASP.net technology and I decided to start learning with Orchard.

What is Orchard:
Orchard is a free, open source, community-focused Content Management System built on the ASP.NET MVC platform.

Orchard is built on a modern architecture that puts extensibility up-front, as its number one concern. All components in Orchard can be replaced or extended. Content is built from easily composable building blocks. Modules extend the system in a very decoupled fashion, where a commenting module for example can as easily apply to pages, blog posts, photos or products. A rich UI composition system completes the picture and ensures that you can get the exact presentation that you need for your content.

Here are few learning resources that I want to share with others also: