Contexts and Dependency Injection in Java EE 6 article is online. I get many questions regarding the differences between EJB 3.X and CDI especially regarding the Contexts (the C in CDI). The EJB "vs." CDI issue became the focus of this article. Feedback, as always, is highly appreciated!
Classic Java EE 7 Workshops: Bootstrap, Effective and Architectures, July, 13th-15th
Online workshop: Java EE 7 Bootstrap