Niranjan Singh's coding blog

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

• High Performance Computing (PDF, ePUB) - Charles Severance & Kevin Dowd
• High Performance Computing Training (LLNL materials)
• High-Performance Scientific Computing (class lectures and slides)
• How to Write Parallel Programs
• Introduction to High-Performance Scientific Computing - Victor Eijkhout
• Introduction to Parallel Computing - Blaise Barney
• Is Parallel Programming Hard, And, If So, What Can You Do About It? - Paul E. McKenney
• Programming on Parallel Machines; GPU, Multicore, Clusters and More - Norm Matloff
• The OpenCL Programming Book

Partial Evaluation

• Partial Evaluation and Automatic Program Generation - (PDF) Jones, Gomard and Sestoft

Professional Development

• Apprenticeship Patterns: Guidance for the Aspiring Software Craftsman - David H. Hoover and Adewale Oshineye
• Confessions of an IT Manager (RedGate, By Phil Factor)
• Don't Just Roll the Dice (PDF) (RedGate, By Neil Davidson)
• How to Do What You Love & Earn What You’re Worth as a Programmer (Leanpub, By Reginald Braithwaite)
• What I've Learned From Failure (Leanpub, By Reginald Braithwaite)
• Why programmers work at night (Leanpub, By Swizec Teller)

Programming Paradigms

• Introduction to Functional Programming (class lectures and slides)
• Type Theory and Functional Programming

Regular Expressions

• Learn Regex The Hard Way - Zed. A. Shaw
• The Bastards Book of Regular Expressions: Finding Patterns in Everyday Text - Dan Nguyen
• The 30 Minute Regex Tutorial - Jim Hollenhorst
• RexEgg

Reverse Engineering

• Hacking the Xbox: An Introduction to Reverse Engineering - Andrew "bunnie" Huang
• Reverse Engineering for Beginners (PDF) - Dennis Yurichev
• BIOS Disassembly Ninjutsu Uncovered 1st Edition (PDF) - Darmawan Salihun

Security

• Crypto 101 - Crypto for everyone
• Handbook of Applied Cryptography
• How to deal with Passwords
• Intrusion Detection Systems with Snort
• OpenSSL Cookbook
• OWASP Top 10 for .NET Developers
• Security Engineering
• CryptoParty Handbook

Software Architecture

• Architectural Styles and the Design of Network-based Software Architectures - Roy Thomas Fielding
• Best Kept Secrets of Peer Code Review
• Data-Oriented Design
• Domain Driven Design Quickly
• DSL Engineering: Designing, Implementing and Using Domain-Specific Languages - Markus Voelter
• Essential Skills for Agile Development
• Guide to the Software Engineering Body of Knowledge
• How to Design Programs
• How to Write Unmaintainable Code
• Kanban and Scrum - making the most of both
• Kanban for skeptics (Leanpub, by Nick Oostvogels)
• Methods and Techniques for the Design and Implementation of Domain-Specific Languages - Zef Hemel
• Naked objects - Richard Pawson
• NASA Manager Handbook for Software Development (PDF)
• NASA Software Measurement Handbook
• OAuth - The Big Picture
• Object-Oriented Reengineering Patterns
• Patterns and Practices: Application Architecture Guide 2.0
• Patterns of Software: Tales from the Software Community (PDF)
• Practicing Domain-Driven Design - Scott Millett
• Programming Reliable Systems (Joe Armstrong's PhD thesis) (PDF)
• Scrum and XP from the Trenches
• Seamless Object-Oriented Software Architecture (PDF)
• Software Architecture (PDF)
• Software Engineering for Internet Applications
• Web API Design
• Your API Is Bad (Leanpub, by Paddy Foran)

Standards

• UNIX - The POSIX Standard - IEEE Std 1003.1
• Linux Standard Base

Theoretical Computer Science

• An Introduction to the Theory of Computation
• Building Blocks for Theoretical Computer Science - Margaret M. Fleck
• Category Theory for Computing Science (PDF)
• Homotopy Type Theory: Univalent Foundations of Mathematics (PDF)
• Introduction to Computer Science - Prof. Subhashis Banerjee, IIT Delhi
• Introduction to Computing
• Introduction to Theory of Computation (PDF) - Anil Maheshwari and Michiel Smid
• Models of Computation - John E. Savage
• Network Science
• Practical Foundations for Programming Languages, Preview - Robert Harper
• Principles of Programming Languages - Scott F. Smith
• Programming and Programming Languages - Shriram Krishnamurthi
• Programming in Martin-Löf's Type Theory - Bengt Nordstroem
• Programming Languages: Application and Interpretation (2nd Edition)
• Semantics with Applications: A Formal Introduction - Hanne Riis Nielson, Flemming Nielson
• Structure and Interpretation of Computer Programs
• Structure and Interpretation of Computer Programs
• Theory of Computation - Sandeep Sen, IIT Delhi
• Think Complexity - Allen B. Downey

Web Performance

• Book of Speed by Stoyan Stefanov
• High Performance Browser Networking by Ilya Grigorik
• Mature Optimization by Carlos Bueno

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:

• Orchard CMS: Up and Running - Ebook - 132 pages
• Orchard Fundamentals - Pluralsight video Training - 2h 57m -Beginner - Sep 2011
• Advanced Orchard - Pluralsight video Training - 4h 12m - Advanced - Apr 2012
• Orchard Documentation - Tutorial Videos (Orchard TV)
• Orchard Documentation
• Udemy Orchard Courses (currently 4 )
      Workflows in Orchard CMS
      Orchard CMS Theme Development Tutorial For Beginners
  Here two free courses for beginners:Orchard CMS Tutorial for Absolute Beginners
  Orchard CMS Tutorial : Recipes In Orchard CMS