This is a somewhat far-fetched idea --- and I am sure there is some 'real' research out there somewhere (if you find it…let me know!).  A question I have is how different people really do search?  Is there a demographic (age, gender, socio-economic status) that lets us know that this person will be very descriptive (long-tail) in their search or may be a specific demographic will structure their search verb-noun (buying homes) versus noun-verb (home buying) or even the improper use of  prepositions at the end of a questions (i.e. - where is Burma at?).  I feel as if Google's personalized search results will start to answer these questions a bit.

On the flip side may be there aren’t demographics that will tell us how one searches and what we have known for years holds true to be the main indicator of how one searches ---  where in the buying cycle the potential client or buyer is.  We know that searches get much more specific as the buyer is further along the buying cycle and can often include brand names or the word “buying”. 

But here is where I am going with this...if (or when) you can determine what search terms users have at a given point in the buying cycle this is huge first step as now you can have your call to action on a blog directed at this stage (learn more here vs. buy now.   However, could you imagine if you knew how your various demographics were searching?  Customizing the content & look and feel based on this knowledge (buying stage + demographics) could yield amazing conversion rates (we can even implement what we know from brick & mortar stores here to some extent --- color theory, placement, etc.)  Imagine being able to direct all 20-somethings that are close to buying to the same blog with relative accuracy?  It is a marketer's dream!

So what's the next step for your company in getting to this point?  Implement a blogging strategy, see where your hits are coming from (obviously, this works best if you are blogging for SEO), work to determine who they are coming from, define what terms are highly converting and of course, adjust your blogging strategy based on what you know.