http://i.cdn.turner.com/money/.element/script/3.0/video/evp/module.js?loc=dom&vid=/video/technology/2009/10/21/twitter_ceo_williams_fad.fortuneEmbedded video from CNNMoney.com Video
Great video of Evan Williams talking about past mistakes, focus and what they look for when interviewing candidates at Twitter.
(Source: http://i.cdn.turner.com/)