This year’s Web 2.0 Summit will focus on the critical role that online data plays in the Internet economy. The conference will identify best practices for leveraging online data and pinpoint pitfalls and challenges related to its use. The CEOs of Intel, Microsoft, eBay, Salesforce.com, Twitter and Dell will be among the speakers at the event. Australian company Roamz will officially launch its eponymous mobile app at the show, and its CEO Jonathan Barouch will participate in a panel discussion.”]