Twitter is a service of micro-blogging that you can use to send messages up to 140 characters for family, friends, or to a global community on the web.
You can also choose to follow other members of the community, both sailing directly to the Twitter site, subscribing to RSS feed that particular OS or receive messages on your phone or PDA (if the operator offer this service).
There are many uses for Twitter, the most common are:
Example 1 - For the Los Angeles Bomneiros use it to keep a community informed of the fires that occur.
2 - You can have instant news updates and up to the minute news from various agencies. Sky News for example.
3 - A majority of users of U.S. twitter it to keep friends and family informed of what''s doing at that moment.