A deeper look at the real PlaceRank and local search opportunity
A thought to get this started: The way Google analyzes links online is really just a mass analysis of human opinions. The analysis of links offline, using mass amount of mobile device location data is the mass analysis of human actions. What people say and what they do can be entirely different things.
So anyone that’s been around the online advertising world will be familiar with the famous Google Page Rank algorithm. While maybe no one other than Larry and Sergey truly knows how it works, there are literally small armies of SEM and SEO experts that wake up in the middle of the night in a sweat wondering if they left out an important keyword, or whether they need to pay for links to get a boost for their clients. It’s a fascinating micro economy that has developed almost exclusively around servicing customers and their interaction with Internet search providers, particularly Google and its $20B in annual revenue.
I haven’t bought search in well over a decade, before Google existed, and am by no means an expert in search, let alone local search, but if you’re looking for more information I’d suggest starting out by reading SEOmoz or Greg Sterlings Skreenwerk blog or reaching out to a local search SEO specialist like David Mihm or Mike Blumenthal who are frequent speakers on those circuits and regularly share some invaluable experiences on their blogs at Mihmorandum and Blumentahals.
But to greatly over simplify, fundamentally there are two main components in play for Google on the web, and how well they translate into a true mobile location aware search is fuzzy at best. So for the current Google web search here are two key factors being looked at:

