user ratings | Social Signal

A few months ago, I left a conference thinking how great it would be if I could have checked up on the speakers beforehand: not just their bios, but their reputations for delivering engaging, useful and, yes, entertaining talks. From that spun out the idea for a site where anyone could rate speakers and their presentations. My back-of-the-napkin diagrams got pretty elaborate... before I filed them away in our now-bulging File Drawer O' Great Ideas.