londrum - 1:31 pm on Nov 9, 2011 (gmt 0)
i think the only useful comparison you can make is with yourself. compare the click through rate with what you got this time last year, or this day last week.
if you're only getting a CTR of 1% and someone tells you that they're getting 2%, or 5% or whatever, then its almost meaningless. because it all depends on what kind of site they've got, their audience, the time of year, the quality of the advertisers... loads of things