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 ? 

London police launched on 25th of February a new advertising campaign. Posters and TV ads are urging Londoners to turn in people who might be taking pictures of CCTV cameras.

"Thousands of people take photos every day.

What if one of them seems odd ?

Terrorists use surveillance to help plan attacks, taking photos and making notes about security measures like the location of CCTV cameras.If you see someone doing that, we need to know.

Let experienced officers decide what action to take." 

Other posters target households:

"you see hundreds of houses every day. What if one has unusual activities and seems suspicious"

as well as mobile phone users :

"Thousands of people have mobiles. What if someone with several seems suspicious?"

What's going on in London ? Is the Metropolitan police not busy enough ? did they become completely paranoiac ? or do they need some budget increase ?

Where is this so famous British phlegm ?

As a response, many people have already redesigned the posters to point out the absurdity of them. Some samples are available on BoingBoing.

As part of the various and numerous initiatives taking place in Thailand this year, a multimedia event names "Thailand: 9 Days in the Kingdom" marking the 80th birthday of His Majesty King Bhumibol Adulyadej on 5 December has now been revealed to public.

‘Thailand: 9 Days in the Kingdom’ project invited in January 2007, 55 of the world’s leading photographers for a photo shoot throughout Thailand over a nine-day period. Result of captured images shows different facets of Thailand: its peoples, traditions, landscapes and cityscapes, commerce and industry.

‘Thailand: 9 Days in the Kingdom’ is now completed and released to public in three parts:

• A wonderful 304 pages large-format pictorial book which portrays Thailand today (50 USD).
• A multimedia exhibition of photographs taken during the shoot held at CentralWorld Event Gallery.
• Two documentary films on the project.

‘Thailand: 9 Days in the Kingdom’ includes seven photos-essays made by some of world famous photographers on various themes:

• reverence for the King (Anuchai Secharunputong, Thailand)
• the ongoing events in the south (Abbas, France; Charoon Thongnual, Thailand)
• Thai boxing (Greg Gorman, USA)
• the harvesting of birds’ nests (Éric Valli, France)
• the care and treatment of AIDS patients by a Catholic priest (James Nachtwey, USA)
• and the country’s colourful cabaret scene (Greg Gorman, USA)
• aerial views of Thailand (Yann Arthus-Bertrand).

In short, if pass by Bangkok before the 5th of December, don't miss the exhibition. For the others, if you like Thailand, the book and its DVD is a must have (available in English and French).

More : 9 days in the Kingdom, A glimpse of the exhibition