I can hear Chrissie and Keith (Senior Adviser and Technical Adviser) tut, tutting at me for even flagging up software in Alpha; but here goes anyway.

Twitter has emerged as one of the world’s most widely used social networking services.

Twitter’s appeal lies in...

• its simplicity, and
• the way it fosters a sense of immediacy.

Communication on Twitter must be brief and to the point, because “tweets” are limited to 140 characters; it doesn’t have to take up a great deal of ...