SEO Google Ranking Procedure

Google is the best search engine for everyone now in this world. And may be it is correct. Because Google has Lot of SEO experts all over the world and also appointed.
Google experts know how to do and what do you for its better ranking. And also know that how they can create top ranking of Google and Google Applications and Web Resources like Youtube, Orkut, Web Master, Analytics, Adwords, Adsense and many more.
Google Experts work on only 3 strategies which are given bellow:

1. Website must be simple
2. Website must be W3 Validate = No error found
3. 3rd Party back linking like No-Follow and Do-Follow