Today the Guardian.co.uk posted an article about twitter .  Jemima Kiss met with Mr. Williams in London and they talk about the twitter service, where it is, what it is for and where it is going.  Mr. Williams still can't get his mother to use twitter but there are 350,000 other users happily using the service it appears. 

One of the interesting tidbits is this quote:

"Rather than attach advertising to a personal communication channel," says Williams, "we want to make it a benefit so that there are people or entities you want to follow. We think those things have potential, so as the userbase grows we'll flesh out which of those things work and the business model and revenue will fit in." 

Quite counter-startup thinking I would say but I guess you can afford to work on the business model later if you have a lot of users, money in the bank and investors that believe in you.  Good on them for being able to have the luxury of working that way!

Go check out the full article "Twitter of success" here . 

The co-founder of Twitter Evan Williams is rumored to have sold Odeo, the other company owned by Obvious Corp.

One would guess that this frees up his time to focus on the future success of Twitter.