Well, that was fun. This week on Total Information Awareness, we had a call-in contest for a Gmail invite. Or three. Anyway, it actually resulted in a flood of callers, and some who were willing to talk on the air. Totally worth it, giving away intangibles in exchange for affirmation that there really are folks out there who tune in regularly. We'll have to do similar in the future. We should have done it when Orkut was hot.