Peter R. points us to this innovative free service run by Peter Shankman.
You tell him your name and email address, and a few times a day, he forwards you a list of reporters looking for experts to quote for various articles in various media. Sort of like Daily Candy for publicity hounds.
It doesn’t work if you answer all the queries. So be honest with yourself, save your time and the reporter’s. Just speak up when it’s helpful.