I did not want to scoop Brad DeLong since he is organizing the event, but he has now announced so I will reiterate: the Fifth Annual Kauffman Foundation Economic Webloggers' Conference will take place on Friday, April 12.
This conference, being hosted for a fifth time, is an invitation-only event to top bloggers in the economics sphere to discuss a variety of topics in economics, finance, and journalism. We'll post updates as the event draws closer. But for now, save April 12 as the date for the live stream--we plan to stream the event here on Growthology the same as last year (video and agenda from last year is here). Given the audience, expect a lot of live tweeting during the day.