What is Twitter? and how is it useful?

Twitter is a relatively well known microblogging tool. Most normal people will be lost at ‘microblogging’.
Misunderstanding
The main misunderstanding of Twitter is as a result of it’s marketing which says: “Twitter is based on the simple question of ‘What are you doing right now?’”.
What people typically use Twitter for?
What Twitters front page it should really say is:
-For when you want to send a message to someone but don’t know who, so send it to everyone
-For when you want to share information or links with friends and colleagues
-For when you want to poll opinion on an idea/topic of interest to you or your followers/friends
-For when you want to promote something that you or your organisation has just done
Who Cares?
Initially no-one. First you have to make your presence known by looking for people you know, these might be through work or social or both. You can then ‘Follow’ them, this is a little like adding a friend on Facebook except that by default they are accepted.
People who you follow are notified by an email (assuming they haven’t turned this feature off, most don’t), and can then if they think you might be interesting follow you.
What if I have private stuff that I want to say?
Twitter is like your own little press release news wire. If it’s private there are many many alternative modes of communication you could use like email.. This is especially worth noting as Google tends to like indexing everyones messages aka ‘Tweets’
If you are interested in what I have to say, check out my twitter@ http://www.twitter.com/duncan_m/
