Tantek Çelik is a computer scientist for Microformats.org and works with numerous clients, such as Mozilla and Revision3, on open Web standards leadership and HTML5 upgrades. Previously, as Chief Technologist at Technorati, he led the design and development of new standards and technologies. Prior to Technorati, he was a veteran representative to the World Wide Web Consortium (W3C) for Microsoft, where he also helped lead the development of the award-winning Internet Explorer for Macintosh. Tantek lives in San Francisco, and has bachelor's and master's degrees in Computer Science from Stanford University, as well as a strong background in human interface and user-centered design from his many years at Apple Computer. He shares his thoughts at tantek.com.