Git

Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.
Site: http://git-scm.com

Books

Added Getting Started With Git - DZone Refcard

This updated Refcard explains why so many developers are migrating to this exciting platform. Learn about creating a new Git repository, cloning existing projects, the remote workflow, and more to pave the way for limitless content version control.

 Free book

Added Pro Git

Pro Git is your fully-updated guide to Git and its usage in the modern world. Git has come a long way since it was first developed by Linus Torvalds for Linux kernel development. This book teaches you how to use it like a pro.

 Free book

Added Git Succinctly

With Git Succinctly by Ryan Hodson, you can get up and running with one of the fastest-spreading revision control systems out there.

 Free book

Added Git for Everyone

Unless you have been living in a cave, Git is everywhere. Creative or engineering, you have directly encountered or will encounter Git in the workplace. A common misconception as well is that Git is only for teams? Regardless of work style or team size, Git is the tool that everyone should be using.

 Free book

Added Git Internals

This PDF explains the internal workings of the Git source code control system. It was originally written by Scott Chacon and published at PeepCode (now a part of Pluralsight).

 Free book