"What's the hottest trend in search-engine optimization that you've never heard of (yet)?" asks Christopher S. Penn in a recent post at the Awaken Your Superhero blog. It's LDA, he reports.

Penn cites a series of SEOmoz posts on Latent Dirichlet Allocation (LDA)—a context-based algorithm for determining search relevance. According to SEOmoz research, on-page content may play more of a role in your rankings than previously thought.

That's because the LDA algorithm (which Google may be using, SEOmoz notes) "looks at the total picture of the content and its context," Penn explains. A Web page about World of Warcraft, for example, needs to mention "paladins, death knights and fish feasts" to rank well with LDA, he notes.

So, how do you act on this knowledge? Penn offers three ways to optimize on-page content for LDA's critical gaze:

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