A year’s research on the digital identity metasystem, led by Berkman fellow John Clippinger, culminates in the Identity Mash-up conference June 19 – 21. The participant and speaker lists are already taking excellent shape. The idea is to explore in depth the development of a federated system of digital identities and to explore ways in which this “meta-system” can be privacy-enhancing, giving users more control over their personal data and how it’s used, and fostering the development of a more accountable Internet (the last bit is my own editorializing; many won’t agree, I suppose). The event is sponsored by Microsoft, Best Buy, and others. Registration is open.