Marketing NoFollow Social News Widget 
Techipedia: Tamar Weinberg
DECEMBER 22, 2009
Tweet Spinner also has a “nofollow&# user list that will algorithmically never follow users who meet certain criteria. Moreover, you can also nofollow people based on their tweets. Let’s say I am a competitor of the guy behind the blue widget factory (@BlueWidgets) because I own red widgets.
Techipedia: Tamar Weinberg
FEBRUARY 10, 2010
While I will make *rare* exceptions for people who are truly producing something relevant, innovative and about which they are passionate, I will never respond positively to a third-person marketer contacting me. I think that your example about the commercial product is exactly what is wrong with the marketer.
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