Thanks for your responses, guys, (and, Radagast, thanks for the question that took us all down this road).
I came to the whole blogging thing kind of late, actually--which is my usual m.o. when technology is involved. In fact, Lisa B. was the one who inspired me to start one of my own. And I'm glad I did. I use my blog as a sketchbook--capturing ideas and impressions as they flit past my brain. Occasionally I've taken these posts and turned them into columns. Mostly it's just been fun to get stuff down and to hear your responses.
Here's what else I've enjoyed--visiting YOUR blogs. I feel like we're engaging in "morning talk"--the kind of funny, chatty, intimate, nothing's-off-limits conversations you have when you're out walking with a best friend at the crack of dawn. A blog is a natural venue for this kind of fresh,off-the-cuff writing, right?
I do think fb and Twitter have siphoned off some of the energy that has gone into blogging. And who knows? Maybe in ten years blogs will have disappeared from our popular cultural landscape, not unlike eight-track tapes. I hope not, though. Truly.