Twitter is a way of having conversations, searching for information, browsing for news – I describe it as being ‘just’ a communication tool, but of course so is the phone, and that’s a pretty powerful piece of equipment.

Interestingly, nearly all of Twitter’s competitors in the micro-blogging world (plurk, Jaiku, Pownce) have either gone bust or stalled in terms of growth.

The tyranny of attention applies in nearly every sector, and this post could have just as easily been about the challenge of trying to listen to music on mFlow, Spotify and blip.fm, or how there’s even only room for one 140 character update service in our lives.