The Brilliance of Louis C.K.'s Emails: He Writes Like a Politician
http://copyranger.com/the-brilliance-of-louis-c-k-s-emails-he-writes-like-a-politician/

PS: If you've ever analyzed Eugene Schwartz's pieces, he crams more promises per square inch than anything I've ever seen.
I'm NOT saying that would work today, but it's an interesting insight in the context of this article.