Awhile ago, I posted a list of thirteen grammar mistakes that bug me. If you like that kind of thing, you might enjoy listening to this. It's "To The Best Of Our Knowledge", from NPR, and it talks about IM and text messaging, but also about changes to grammar in general. My favorite part so far is an interview with the author of "Woe is I". I'm about 2/3 through (Have it on my iPod, and I listen while I walk the dog...), and I'm enjoying it. Hope you do as well.