does your newsletter make money?

A few posts ago I touched on the importance of publishing a newsletter (see Newsletters Are Not Dead). Today I came across this blog post, Email Newsletters Are Serious Business by Jason Baptiste, CEO and co-founder of Onswipe. Further proof-is-in-the-pudding that newsletters are not only NOT dead, they're helping companies MAKE money.

What do you think? Do you have a newsletter? Does it resonate with your audience? Does it help with your profits?