Good article. Reminds us of all the basics. However, I'd like to stress something that is often confusing to people. I can't tell if Lisa is saying this or not.
When Google talks about "updating content," many people have translated that to mean Google wants you to change your existing copy frequently. This is not always the case. It depends on your site topic and several other things.
Frequently, all Google is looking for is "up to date" content. It doesn't matter if it was written today or five-years ago. As long as it is current now.
Continually adding *additional* content (articles, press releases, etc.) is a good thing with Google. That was made perfectly clear in their patent application. (Which is where you'll also find the explanation of updated text.)
I'm not disagreeing with Lisa. As I said, I can't tell if that's what she meant to say or not. Just thought I'd clarify to be on the safe side.
