W3C holds its Technical Plenary Week from 1-5 March in Cannes-Mandelieu, France where 30 W3C Working Groups and Interest Groups hold face-to-face meetings. Participants and invited guests attend the plenary mid-week where they will be 3-minute lightning talks and presentations on Web architecture, mixed markup, quality assurance, new Web devices and searching the Web. W3C thanks sponsors IBM and Sun Microsystems for their generous support.