I have been asked if a man in Minnesota can "follow"me on Twitter, he apparently has over 25,000 "followers," to you this may appear a great increase in the chance of a sale; to me this proves even stronger the total futility of the system.
I have apparently 448 "followers" on Twitter and no idea how many "followers" they have, if we assume each "follower" has 5 "followers" that is over 2,000 possibilities for the blog to get a read - how many a month does the blog get from Twitter - on a good month 1 or 2, as you see the more people "follow" me, the more futile the system gets.
My editor put me onto a blog run by two young girls, while I did pick up a few good ideas, these girls proved another exercise in futility as they spend all day on Pinterest and will tell you how good it is. I have been on there for over a year and like most of my writer friends will agree the site is useless for us.
About a year ago, I joined Scrib'ss because a friend joined a week earlier and she got seven sales within hours of joining; my first story on there was Chapter 1 of Chronicles and had over 300 readers, but no sales after several months, another useless site.
The only sites which worked for me are StumbleUpon and RebelMouse and to a lesser extent Google & Facebook.