There aren't a lot of true subject matter experts in the email marketing world.  It's a relatively simple technology, but there are a lot of moving parts, and not a lot of people understand most of them.  I'd like to recognize Loren MacDonald, Vice President of Marketing for EmailLabs, for his consistent authoring of publications to help email marketers succeed in this industry.  His ClickZ column with coworker Kirill Popov, his collection of articles that were disseminated at the recent MarketingSherpa Email Summit in Chicago, and the best practices section of the EmailLabs Web site are all great.  It's probably not kosher for me to publicize a competitor's publications on our blog, but it's good info for customers and employees of all email service providers.