Nonprofit Marketing Guide.com outlines some best practices for nonprofit email newsletters and several quick fixes that can move your email newsletter to greatness; including writing powerful headlines and using an editorial calendar. She also discusses ways to convert your current print newsletter into an email newsletter. Check out the guide here.

Here’s a cool article written by Idealware, an organization that provides candid Consumer-Reports-style reviews and articles about software of interest to nonprofits. They explain how to use basic email metrics to understand how your constituents are reacting to your emails. They also talk through the data points needed to track email performance, the most common formulas for standard email metrics, what they can tell you, and how to use them to improve results. Check it out here:
http://www.idealware.org/articles/email_metrics.php