Basics

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http://www.google.com/about/company/philosophy/ We first wrote these “10 things” when Google was just a few years old.

Ten things we know to be true – Company – Google

As SEOs, we are interested in the most influential factors in commercial web search results. Accordingly, we have been conducting ongoing studies looking at the relationship between web search results and link metrics/anchor text from Linkscape, social media signals from Facebook and Twitter, and on-page/URL/domain keyword factors. This document explains our methods, including the construction of the data set and statistical analysis. It is structured as follows: the following section includes some details on the dataset itself, from the choice of the keyword list to data sources and feature extraction.The last section describes our statistical analysis methods. Before diving into the details, we want to mention several important things about the analysis. http://www.seomoz.org/article/search-ranking-factors

2011 Search Engine Ranking Factors

The Responsibilities of SEO Have Been Upgraded

When I started in the SEO field (circa 2003), the job responsibilities weren't easy, but the list was relatively small. Over the next 5 years, those responsibilities increased, but it was primarily in tactical and knowledge sorts of ways. A 2003 vs. 2008 rundown might look something like: http://www.seomoz.org/blog/the-responsibilities-of-seo-have-been-upgraded
http://searchengineland.com/no-seo-ever-went-wrong-by-127221 The world of SEO seems to be ever-changing, and the pace of that change is ever-accelerating.

No SEO Ever Went Wrong By…

http://www.searchenginejournal.com/25-ways-to-get-penalized-in-2012/47245/

25 Ways to Get Penalized in 2012

Have you seen a recent drop in your website’s traffic levels?
On the heels of yet another “SEOs are just gaming the system and taking advantage of poor users” article, it’s time to set the record straight about “gaming the system.” Why do so many use our terms so incorrectly? And does Google really hate SEOs?

SEO 101: Meet the White Hats, Gray Hats, Black Hats & Asshats

http://searchenginewatch.com/article/2214534/SEO-101-Meet-the-White-Hats-Gray-Hats-Black-Hats-Asshats