If we assume, as the joke goes, that the best place to hide a dead body is on page two of Google, we can assume it has a lot of click data to play around with on page one but much less after that point.
Following SearchMetrics' study on the factors that improve Google rankings, Moz actually ranked the factors. The studies saw eye-to-eye on technical factors, but differed on social.
Spam linking was once very common and still works well, though this columnist believes Google will crack down on these links during the next Penguin update.
Despite the debates on the value of link-building, it's still a practice that can work well if executed correctly. The same can be said of guest blogging and infographics.
Just about every backlink reporting service has developed a metric to compete with PageRank. Here are four resources that may be good alternatives.
What will the latest update of Penguin bring and how can webmasters prepare?
Nofollow links can be great for traffic, but are they leading us down a dangerous path where we can't trust anything we read online?
In addition, Searchmetrics’ 2014 SEO Ranking Factors and Rank Correlations report finds the quantity and quality of backlinks remain critical.
In a lot of cases, links from methods that many would consider bad are not just part of a natural profile but can actually drive traffic and PageRank.
As Google gets better and better at determining what blocks within your website serve what purpose, links within your main content are becoming much more important.