Journalists use Twitter and other social networking sites and services to find resources for stories and segments. Once you’ve identified the media outlets that are important to your book publicity campaign’s success, look for journalists representing your target outlets on Twitter using these and other resources:

• http://justtweetit.com/media/reporters-press/
• http://www.mediaontwitter.com/
• http://www.journalisttweets.com/
• http://muckrack.com/

Read their tweets so that you not only learn more about them and their “beats,” but so that you uncover interview opportunities that will help you promote your book, too.