Newsrooms are cutting staff and reporters and editors are hard pressed to do more with less. Tools like search engines and social media make available a tremendous amount of information in real-time.  The news world is a world of deadlines and it would seem the use of search and social networks to source experts or people/companies that fit a story angle would be ideal. Even respected news organizations like the BBC are encouraging their journalists to embrace social media.
http://www.toprankblog.com/2010/02/journalists-search-social-media/