google-vs-content-farms

Google Vs. Content Farms

March 6, 2014

The search engine marketing geniuses and engineers of world domination that run Google, Inc. are the go-to guys for SEO profitability — as they well should be, considering they process at least 1 billion search queries and twenty-four petabytes of data daily. Still, it looks they’ve finally drawn a line in the sand when it […]

892-unique-ways-partition-3-x-4-grid

The 892 unique ways to partition a 3 x 4 grid

March 1, 2013

There are 892 unique ways to partition a 3 × 4 grid into unit rectangles. For many years, designers have used grids to unify diverse sets of content in books, magazines, screens, and other environments. The 3 × 4 grid is a common example.Yet even in this simple case, generating all the options has—until now—been […]

Correlation vs. Causation (A Mathographic)

Correlation vs. Causation (A Mathographic)

September 21, 2012

As part of our quest to understand the Algorithm, we do a lot of correlation analysis here at SEOmoz. We tend to dive right into the deep end, so I thought it might be a good time to take a step back and talk about the absolute basics of correlation, including some warnings about causation. […]