Zite is a strong product, and I wish the team well. (Disclaimer: Mark Johnson is a friend, and deserves some time off.)

This is admittedly self-serving but appropriate for HN: If you're interested in an alternative, I quit my job at CBS yesterday to work on a new SF bay area startup that's aiming to provide personalized news with zero configuration. You can sign up to be notified of the beta at http://recent.io/