Are you aware of HARO? It`s a free email newsletter delivered 2-3 times a day on business days. Journalists ranging from bloggers to national TV shows request people to interview on whatever subject they`re writing/broadcasting about.
Sign up at http://www.helpareporter.com/
Occasionally people get thrown off the list for off topic responses. Other than that, it`s a really good resource.
Sondra



