In this video from Matt Cutts, you can see that one of the most important SEO factor to rank number one in Google. He states how link building is still very important, and he also talks about keyword density and how important it was.
Mr. Cutts also states that you need to repeat your keywords in your website the more Google will see the content on your site and help you rank number better in the Google SERPs (search engine results pages).
But wait a second, Joey… Keyword Density? Inbound Link Building? Didn’t we just hear that these items were no longer strong Google ranking factors?
You did. Guess what, not everyone is completely transparent with tips on how to get ahead in business. Especially not people who write algorithms. Or nearly everything where edges can be gained. Otherwise, who would buy paid media?