From Brian Teasley at ClickZ:

If you're a marketer who's not using predictive models to increase your response rates, you need to read this series (here's Part One). In this second part of a three-part series on predictive modeling, we'll discuss how models are used, and touch upon some of the algorithms marketers and modelers use to develop models.

From Zachary Rodgers at ClickZ:

New digital marketing book "Call to Action" has shot up the New York Times, Wall Street Journal and Amazon.com bestseller lists without advertising, national distribution or promotional support. How? Authors Bryan and Jeffrey Eisenberg say the dominant driver of its success has been word of mouth, most of it generated online.