henry0 - 8:12 pm on Feb 14, 2012 (gmt 0)

How short of a list is relative and probably in direct relation to your very own genre, what matters is "quality", I consider short in the range of 500 to 1000 quality Tweeter's users.
Look at he the "Fluff" that, most of the times, shows in account in the tens of thousands users.