Sales 2.0 is about the shift that has taken place in Sales and Marketing as a result of the rapidly changing ways customer relationships are managed via the Web. This free book (you may download a .pdf or request a paper copy) is an introduction to the key concepts of Sales 2.0 and associated Web-base technologies.
The book was the result of surveying over 2000 sales and marketing professionals. It includes metrics on lead quality, lead quantity, opportunity prioritization, and key steps for improving your numbers.