Testing SEO: Moving The Industry Forward | Real SEO | Scoop.it
Our industry has seen big changes over the last few years, and with that change has come a shortage of testing. 

In addition to all the updates we are aware of, there is a lot that Google isn’t telling us. This is what makes testing and sharing even more important...


http://www.seomoz.org/blog/testing-moving-our-industry-forward