As I've mentioned in recent posts such as here , here and here , I've been very interested in Domain Specific Languages (DSLs), especially with regards to F# and the DLR as well. I recently re-listened to Software Engineering Radio Episode 52 with Obie...
As you may have seen from previous posts, I have been covering Lang.NET and some of the interesting things that came from it. I've always been interested in compilers, DSLs and such, and I hope you found them interesting as well. I covered it these posts...