If you haven't already subscribed, I highly recommend getting Peter Shankman's Help a Reporter newsletter which he sends out three times a day, each with anywhere from 2-10 queries from reporters looking for an expert. This is a great opportunity to make your author an expert and get them off the book page.

Here's what Shankman says about the service:

I started this idea to help all my reporter friends. Originally built as a FaceBook group, it's grown like mad and now it's an email list. Yes, it's free.

However, be warned: never repost his emails. As PR Newser reported last month, Canadian PR pro Nicole Lascelle republished his email on her blog complete with journalist contact info and got busted by Shankman.