Books
Inbound Marketing Get Found Using Google, Social Media and Blogs by Brian Halligan & Darmesh Shah
Groundswell Winning in a World Transformed by Social Technologies by Charlene Li & Josh Bernoff
Advertising Media Planning by Jack Z. Sissors & Roger Barron
Advertising Media A to Z by Jim Surmanek
The Media Planning Handbook by Helen Katz
Media Web Sites
http://mediapost.com -blogs, reps, resources
http://imediaconnection.com -information on digital media