Seth Godin’s “The one who isn’t easily replaced” from Seth Godin’s Blog. If you’re not reading Godin’s blog, you should be. Practical, no-nonsense advice that will help you understanding marketing and how to get better at it.

“[E]ither you do something I can’t do myself (or get from someone else), or I pay you less than you’d like.

“Why else would it be any other way?”