by Kyle Grant
http://www.enquiro.com

I don’t think it is going to be a surprise to anyone to know that not every paid search test they implement will be a success; if it is a surprise, I am sorry. (p.s. there is no Santa Clause, either). The key to successful management of paid search is to determine acceptable margins of failure and test within those margins. How much failure can be tolerated and how much are you willing to risk?