I found very interesting post on Tom Barrett's "ICT in my Classroom" blog about how Twitter is used as an educational tool.

Tom's post also describes where Twitter is positioned among other communications tools. Twitter is not a synchronous or an asynchronous communication system. It is rather both at once depending how channel's followers use it.

He makes a nice metaphoric comparison between Twitter and a flowing torrent where people can just stand by it and observes the flow. Some prefers to jump into while others simply do not pay much attention to the  stream.

Personally I am amazed to see how many different ways Twitter is used today. There are, indeed, lots of individuals (you and me) but also some politicians (Clinton, Obama, UK Prime Minister), Public Services (LA fire department, AmCross), Airlines, News agencies, etc.. which are increasingly using it, but not necessarily to interact with others but to broadcast content or information.

Is any company using Twitter for internal use only ? 

Quite surprised to discover that British Prime Minister Office, the famous 10 Downing Street, is, since very few days, using social networks to communicate on the Web. 

Prime Minister Gordon Brown (at least his PR team) is active on Twitter and photos of the French President's visit to Downing Street have been published, by PM communication team, on Flickr.

Is PM Brown a geek also ? 

Who will be next ? This one perhaps ?

Q: Will it give enough "respectability" to introduce micro-blogging into corporate environment ? or is it still too early ? I will come on that subject again, after reading Simon's post