What is it Twitter?

twitter.com is a micro-blogging service, started up as a SMS blogging site meaning that you send text messages to twitter to update your status and twitter messages you with any updates that any person you followed post to twitter, during the first couple of years twitter was mainly reached through text messages there for twitter updates had a limit of 140 characters the same limit as how many charters one standard SMS can contain.

but as the iPhone and other smart-phones have evolved twitter focus have change to now being a mobile client focused network

follow/unfollow
just like any other normal socialnetwok you can connect to other users, on twitter this function is called “follow” twitter is based on an open social structure as you can normally follow any person you want to without needing the approval of the person being followed

twitter it both used by private people but to a wide extent it is used as an expert network where you connect to people/companies that are experts with in a felt that interests your. Much like any blog or new-site.

What we have to do is delivered to people the best and freshest most relevant information possible. We think of Twitter as it’s not a social network, but it’s an information network. It tells people what they care about as it is happening in the world.
- Evan Williams

i believe that just like any other social network/blogging service twitter plays an essential role in connecting the world we live in and improve the rights and freedom of speech for the individual

en example of this is feature in an article from CNN.com Student ‘Twitters’ his way out of Egyptian jail where an American citizens was arrested while covering an anti-government demonstration in Mahalla, Egypt, while being transported to prison he tweeted “arrested” with in a few seconds his friends both in the USA and Egypt was aware of that something had happened to him with the help from his friends he was able to get out again