1) The BBC have got Adam and Joe blogging, which is something of a joy. Early days, but you can take a look here.
2) There's a comedy gig happening on Twitter at 8pm tonight, hosted by Tiernan Douieb, with the likes of Mark Watson, Mitch Benn and Pappy's Fun Club on board. Ten minutes each, one-liners or stories welcome. Might be just a tad unwieldy (Stephen Fry mentioned it, meaning thousands will be following) but should be a lot of fun nonetheless.