A Visual Guide to Keyword Targeting and On-Page Optimization by Moz

How do I build the perfectly optimized page?

This is a challenging question for many in the SEO and web marketing fields. There are hundreds of "best practices" lists for where to place keywords and how to do "on-page optimization," but as search engines have evolved and as other sources of traffic — social networks, referring links, email, blogs, etc. — have become more important and interconnected, the very nature of what's "optimal" is up for debate.

Read more at Moz - A Visual Guide to Keyword Targeting and On-Page Optimization

Link: 

http://moz.com/blog/visual-guide-to-keyword-targeting-onpage-optimization