I posted a (relatively) short video on the use of Twitter. The video was created for my colleagues at work. It is not exactly my finest hour – I kicked this out as quickly as I could. I had edited the screencast two time previously, but the exported results were missing sound and audio. I would like to think the earlier efforts were works of genius that were unlucky not to see the light of day, but that would be a stretch. Anyway, I hope they are of use.