Twitter is an online service for letting people know what you are up to at any time of day or night.
It also allows you to keep track of what other people are doing, either by monitoring their updates online, or by receiving updates directly to your phone in the form of SMS text messages.
Twitter can be a useful tool for journalists who have something to say, but not enough to warrant a full report or blog post - there is a limit of 140 characters per Tweet. It also comes in handy when internet access is restricted, since Twitter accepts text messages from mobile phones.
How does it work?
Anyone can get started with Twitter by going to their website and registering for an account.
If you like a particular individual's Twitter updates you can then "follow" them, and receive every update they publish. So if one of our Twitter feeds interests you, sign up and add us to your list.