Seth Godin, (you know, the dude that peeks out from the bottom of all those marketing books) thinks your email newsletters should be long, but your blogs short (see his post, "Two Kinds of Writing"). We concur. Sorta. More specifically, we think email newsletters should be chock full of personality. Be funny. Be dorky. Share a funny story. Whatever. Show your customers your human side. When else do you get a chance to sit down with a customer, one-on-one?