Here are the best marketing books for 2009 listed in order of awesomeness:
1. Inbound Marketing: Get Found Using Google, Social Media, and Blogs (The New Rules of Social Media)
Why and how to market your business online through inbound marketing rather than outbound marketing.
2.Free: The Future of a Radical Price
Can free be an effective marketing strategy? Anderson explores the history of free and how companies are using free as a winning strategy.
3. World Wide Rave: Creating Triggers that Get Millions of People to Spread Your Ideas and Share Your Stories 
Makes a good argument for using social media and online marketing to market your business more effectively. Tons of excellent case studies to support the new methods of marketing.
4. The Next Evolution of Marketing: Connect with Your Customers by Marketing with Meaning
Bob describes a new approach to marketing in which the marketing itself is valuable. Lots of great examples of companies doing meaningful marketing.
5. Trust Agents: Using the Web to Build Influence, Improve Reputation, and Earn Trust
Excellent book about how to use social media to build relationships with your customers and colleagues. Has been called the “How to Win Friends and Influence People” of social media.
6. Web Analytics 2.0: The Art of Online Accountability and Science of Customer Centricity
The followup to the hit Web Analytics An Hour A Day. Kaushik is the thought leader on measuring online marketing and donates all of his proceeds from the books to charity.
7. Crush It!: Why NOW Is the Time to Cash In on Your Passion
Gary Vee is one of the most successful personal brands on the web and is one of the best success stories for social media marketing. His book is more motivational than tactical but there are a lot of great ideas too.
8. Linchpin: Are You Indispensable?
Linchpin describes how to thrive in the new economy that has replaced the broken factory-work model. It is more of a success book, but there are great takeaways that can help you in your marketing or business career.
9. Yes!: 50 Scientifically Proven Ways to Be Persuasive
Lots of interesting studies and examples that describe ways to be more persuasive while providing insights into the way we think.
Other books of note:
Twitter Power: How to Dominate Your Market One Tweet at a Time
Marketing 2.0: Bridging the Gap between Seller and Buyer through Social Media Marketing
The Whuffie Factor: Using the Power of Social Networks to Build Your Business
The Social Media Marketing Book
Six Pixels of Separation: Everyone Is Connected. Connect Your Business to Everyone.
Twitterville: How Businesses Can Thrive in the New Global Neighborhoods
Have any book recommendations to add to the list? Leave a comment!
Also see: Top 10 Marketing Books of 2008
This article has been republished from Cool Marketing Stuff