Contributing to PHP isn't nearly as difficult as it seems. In this post, Thomas shows you how to add patches to the online documentation for PHP!
Contributing to PHP: How to Contribute to PHP’s Manual
Git for Beginners
An introduction to version control with Git, for developers who work alone.
Version Control Software in 2014: What are Your Options?
An overview of the most popular options for version control software, along with some other options worth noting.
Database Versioning with DBV
Wern Ancheta explains what DBV is and how one can use it to version control a database
Using Git in Open-Source Projects
An overview of how Git became so dominant in the version control industry along with some concepts showing how it can be used effectively in open-source.
How to use Dropbox with SVN or Git for Cloud SCM