In March 2013 I gave a presentation to my local development group devICT over the different forms and uses of Regular Expressions. The talk was just under two hours long and was well received by the audience (approximately 25 developers). The presentation was broadcast through Google Hangouts On Air and the video is available on YouTube.
The presentation covers the most commonly used features of regex and some of the nicer advanced features like backreferences and assertions. Most of the research for the presentation comes from regular-expressions.info. Interested readers should check out that site’s references on some of the crazier things you can do.