Tires: tire noise, tire noise, tire problem

Question
I am trying to find out if I have a tire problem. There has been a humming noise that consistently get louder over the last month. I took it in where I got the tires (Sams club) and had them rotated. They said didn't hear anything out of the ordinary, but having been driving the car for years, it is easy to hear it, as the noise wasn't there before. And I really think it is getting louder. Can you help me, or tell me where to go to find help?

Mark  

Answer
mark,

When they rotated tires, did the noise move?  If it did then it is probably tires.  If not, it isn't tires.

You didn't describe the noise.  Diagnosing noises is hard enough without hearing it, but without a description, I can't begin to tell you what it might be or might not be.