Most recently, I guest hosted on CommanderCast, a podcast discussing the Commander variant of Magic: the Gathering. You can listen to the whole thing on their website here.
I wrote a pair of articles on aspects of RPG design for Eye of the Vortex, before they switched over to an MTG focus. The articles should be visible here and here, but EoV's hosting has been spotty of late. I may ask the editor if I can repost the articles on my blog since they don't seem to be using them.
I've also been fairly active discussing Commander on the official forums, and have written a number of article-length analytical posts. Here are a few of my favorites:
- Priceless Treasures, a general Magic variant I designed. Some other clever folks later adapted the format into Excavation of Kaldra over on MTGSalvation, with some added gameplay and flavor.
- EDH Victory Points, a post on my development of a list of achievement style point awards for playing Commander.
- The Role of Poison in Commander, discussing a controversial aggressive win condition in a long-game format.