Rand Fishkin dives into blogger and technologist Robert Scoble's three-part video series that aims to explain why Mahalo, Facebook and other sites that blend socially constructed features into their Web crawlers, will usurp Google and its algorithm in a few years. Fishkin, SEOmoz's co-founder and CEO, tackles each of the points Scoble makes in his videos, countering his theories with a side-by-side analysis of search results from both Mahalo and Google, as well as a general defense of common SEO practices -- which Scoble's videos also seem to pan.