On the very occasional occasions when I write some stuff on other sites, I try to mention it here. So...
I've just written a couple of Amazon reviews: one for the new Melissa Etheridge album, and one for an out-of-print book of quotations. Writing a review of an out-of-print book may be the very definition of pointless.
Also, while I'm much more of a Facebooker than a Tweeter, there was a meme on Twitter recently I just couldn't resist. The game was called "#rockretractions" -- basically, the voice of a song revising what it originally said. I tried my hand.
My favorite one that I wish I'd written was, "On the other hand, I may be right and you may be crazy." Also, while I'm quoting things that made me laugh, another recent meme on Twitter was, for some reason, "#namesfortinywhales." Perhaps it was just localized to a few people I follow. Anyway, my friend Iain wrote "wee frilly", and it's been periodically cracking me up ever since.