The New Rules of Marketing and PR: How to Use News Releases, Blogs, Podcasting, Viral Marketing and Online Media to Reach Buyers Directly	This book documented ideas I've been using since the 1980s at IBM on the Internet. Plus new ideas too!
	The Social Media Bible: Tactics, Tools, and Strategies for Business Success
	Successful Direct Marketing Methods	Covers the subject completely. Target, target, target!
	The Copywriter's Handbook, Third Edition: A Step-By-Step Guide To Writing Copy That Sells	I've been using this book for years and recommend it often.
	Tested Advertising Methods (Prentice Hall Business Classics)	The original classic that started measurable marketing.