Which ranking signals do SEOs worry about too much?

What ranking signals would you say SEOs worry about too much? What ranking signals should SEOs should focus on the most. Bonus points if you can answer in concise bullets and without using the word quality. ;) Scared of Clowns, Seattle, WA Have a question? Ask it in our Webmaster Help Forum: groups.google.com Want your question to be answered on a video like this? Follow us on Twitter and look for an announcement when we take new questions: twitter.com More videos: www.youtube.com Webmaster Central Blog: googlewebmastercentral.blogspot.com Webmaster Central: www.google.com