In Episode 54 of Semantic Mastery's Hump Day Hangout, one of the participants asked about the best practices on On-Page optimization as well as in protecting one's money site.
The exact question was:
Can you please go over how you do on page optimization? Also, when purchasing services on fiverr or source market how far out do you go to protect your money site. For example, would you purchase a domain stacking service and use that on a tier1 which has direct links to your money site??