SanDiegoFreelance - 4:38 am on May 24, 2011 (gmt 0)
I simply don't have near enough data to make such a conclusion as to what is good or bad for search (Google does).
I would dare to make a conclusion that Google does what is good for Google. With what I know I would conclude that human ran directories would / could produce quality results ... but they are inherently in competition with google, and directories don't seem to get enough traffic to grow. This situation is unlikely to change unless or until Google has a real competitor who will empower vertical directories.
If you found that you HAD to tweet, be liked, followed and whatever, and that you had to spend a significant amount of your time pursuing that, instead of doing what you love, and doing things linked to your unique expertise, what would you do?
In a perfect world find a likable somebody who makes coffee to do the tweeting, who people like to follow