If you want your site to do well in Google organic search, start your education here
Before you start looking for third-party SEO advice about “what google wants”, why not find out from Google itself?
Google Webmaster Academy – big news about this coming soon:
https://support.google.com/webmasters/answer/6001102?hl=en
Webmaster Guidelines – don’t run a website without reading this!
https://support.google.com/webmasters/answer/35769?hl=en
Search Engine Optimization Starter Guide – Google really DOES want you to do GOOD optimization:
http://static.googleusercontent.com/media/www.google.com/en/us/webmasters/docs/search-engine-optimization-starter-guide.pdf
How Search Works – it is more complicated than you may think:
http://www.google.com/intl/en_us/insidesearch/howsearchworks/thestory/