GREAT question.

Read his post here.

So what do you think? Do you lean towards the mathematical systems driving the Googles, Yahoos, Alexas and Technoratis of the world, or do you tend to lean towards relevant content-based models supported by a combination of personal preferences and social networks like Twitter, Facebook, etc.?

Is it a combination of both? Is there another option? Pie chart, anyone?

What do you think?

Update: Interesting answers already from recruiter extraordinaire Maren Hogan and HWKU’s Erich.