One of the eternal questions you hear asked about Twitter, especially by those who don’t use it themselves, is ‘Why?’

Of course, there’s a myriad of different answers, but these two films come close to answering the question.

The first was put together by Christian Payne (@Documentally) and Matt Rawlinson (@Barnstormed) from vox pops they conducted at a gathering of Twitterers in London in September last year – the first ever Twestival:

The second was filmed by Hamish Campbell (@hamishcampbell) at Twinterval, another gathering of London’s Twitterati in December, and perhaps delves a little deeper than the first:

If you feel like doing some anthropological fieldwork of your own, you’ll be glad to know that Twestival has gone global – on the 12th February there will be local Twestivals all around the world, bringing together Twitterers for an evening of fun and to raise money and awareness for charity: water.

We’re going to be at three of them ourselves – we’re organising the Paris Twestival, which we’re confident is going to be one of the biggest and best, Nathan is helping out with Sydney’s and what’s left of the team will be partying hard here in London.

While I’ve got your attention, why not have a look at the last set of stats on Twitter usage in the UK, see Chris’ commentary on why the British tabloids are so hostile to Twitter or follow me on Twitter…

Update: Drew Benvie on the new generation of Twitter users, an interesting memo from The Pew Internet & American Life Project on Twitter and status updating and the answers the Guardian got to the question What do you use Twitter for?