Why am I blowing A/C fuses?

[Four-Four-Two]

For those of you that are around the Chicagoland area, you have probably noticed it's getting pretty hot. I jump in the car yesterday, turn the A/C on... and nothing. I try heat, vent, defrost... nothing. So I look at the fuse for the controls, and it's blown. I put a good one in, and it blows the second I try and turn the A/C on.

I am guessing there is a short somewhere. Any ideas on where to look? Any problem areas?