Made to Stick: Why Some Ideas Survive and Others Die This is a terrific book about story telling. It will make your content much stronger.
The New Influencers: A Marketer's Guide to the New Social Media If you're trying to understand Web 2.0, this is a great place to start.
The New Rules of Marketing and PR: How to Use News Releases, Blogs, Podcasting, Viral Marketing and Online Media to Reach Buyers Directly (New Rules of Marketing & PR: How to Use Social Media, Blogs,) Public relations is still critical to building your business, but you need to do it differently. It shows you how to create an effective online PR strategy.
Presenting to Win: The Art of Telling Your Story How to take your audience from skeptics to believers. If you give presentations, read this book.
Waiting for Your Cat to Bark?: Persuading Customers When They Ignore Marketing Make sure that your website persuades as it leads visitors to take action. Learn how to make that happen.