I set up http://ibboard.co.uk/devlog/ using Laconica because it was free, open-source software that let me micro-blog (I wanted to post snippets about what I'd done, not essays and fully posts) and it would be under my control. I've not done much with that control, so I've finally started using my Twitter account (http://twitter.com/IBBoard).
If anyone else is on Twitter and wants to get updates about what I've done without looking at commit logs then please feel free to follow me.
Now I need to find someone useful to follow, rather than just being flooded with junk and miscellany about the minutiae of someone's life.