In the last few years my work has focused on creating open source infrastructure for the "social web." A user-centered networking layer that gives people more control over their digital identities across a wide variety of computer mediated contexts (e.g. email, IM, e-commerce, shared spaces, and enterprise directories). As part of, I'm the architect of Higgins, a user-centric trust framework hosted at ( and co-creator with Phil Windley and others of the Identity Gang (