tangor - 7:43 am on Sep 1, 2011 (gmt 0)
I wouldn't use robots.txt to block URLs because it's a waste of link power.
I question that statement since robots.txt has NOTHING to do with links!
But I'm willing to be educated with examplars which indicate that robots.txt is injurious to link juice (power, et. al.)
This is one of those don't pee on my leg and tell me it's raining kind of things.