If you’re interested in meditation, the founders of Buddhist Geeks have a free course on their new meditate.io website named The Five Styles of Meditation.
Several years ago I taught classes on Java programming and Object-Oriented Analysis and Design (OOA/OOD). After using Java training material from other companies for a little while (and being unhappy with their quality and high fees), I decided to write my own Java course material.
Today I'm glad to announce that I'm giving this Java and OOA/OOD training material (150+ pages) away for free -- no registration required. (I always hate it when I have to "register" to get something free, so you'll find no registration forms here.)