live tweeting

 live tweeting  is a particular kind of tweetstorm where the posts are both meaningfully sequential and about an actual event that is happening real time, either attended in person, or viewed remotely, possibly even a viewing of a recording on an event after the fact, but still in real time.

Noter Live is a useful web-based tool that makes live tweeting easier and creates a record of the tweets that you can share on your own site. It is available from Kevin Marks' website