Technology...it, in and of itself, is neither good nor bad; it's how it is used that determines that. The reason I say that is because, recently I have been seeing this...as I'm sure you have, too:
Agents who want homeowners to think that they are a "specialist" in their neighborhood set up a free blog, then they put the name of the subdivision in bold throughout the body of some inconsequential post and throw in common search terms in bold with the hope that some unsuspecting homeowner or buyer will stumble across their blog/site and assume that they are an "expert" with vast experience in that community...
For example, I found two this week like that; one guy whose office is in Belle Glade put up a page peppered with search terms and then a woman who established 2 or 3 blogs peppered with bolded search terms. Experience? I think between the 2 of them they have sold 2 homes in our community!
I know Google has recently tweaked their search algorithm in an attempt to make their search results more relevant, but at this time, the algorithm is fooled by bolded search terms repeated throughout a page.
If you come upon a Realtors page like that...beware...this is the new way they are trying to trick you from the get-go. The old (and still being used) way agents tried to trick residents of a community was by sending out postcards/fliers listing "RECENT SALES", then listing the past 60-90 days sales in a community, all nicely positioned underneath their name and photo...in the hopes that the unsuspecting homeowner will think that agent sold all of those. Then, in very small print, at the bottom of the mail piece, is a cryptic disclaimer like this: "sales taken from the local MLS".
Starting out a business relationship by tyring to trick a potential customer...not good business, and not who you want to do business with.
Detailed community knowledge and vast experience; that's what you need to look for...not search engine tricks.