SEO has always been a secret art. The goal posts kept changing and it was truly only those dedicated to the science who were able to keep on top of the changes, thus ensuring their clients websites stayed on top of the search listings.
It seems this is about to change with Google placing an emphasis on good writing, factual information, interactive content that’s both rich and authentic, all forming key components in future SEO algorithms released with their Panda 4 upgrade.
http://www.prdaily.com/mediarelations/Articles/17726.aspx
