If you are in the Atlanta area, here's our Panhellenic:
http://www.atlantapanhellenic.org/
Since I only wrote my first rec earlier this year, I originally thought I just needed to write a glowing letter to support the PNM. I was surprised at the amount of detail the official rec form wanted. Don't sororities already get GPA and extracurricular info in the rush registration? I couldn't fill out ALL of it, but was able to do most of it. Heck, even for girls I know really well I prob couldn't fill out the whole thing. O.o