The most amazing writer's resource I've seen in a long, long, long time. Yes, really.

I'll just steal the wording straight from the site, because Peter said I could:
Help a Reporter Out helps editors and reporters locate authors and other subject area experts willing to be interviewed for articles, books, blogs, and podcasts. Once you register – for free – you will receive up to 3 e-mails a day, each containing up to 10 detailed queries from reporters looking for individuals