Hi, I am a graduate student at a small university in Philadelphia,Pa. I am now regretting not joining a sorority when I was an undergrad

Can anyone help me as to where I can find information to be part of a sorority even though I am a graduate student? Also, how can I learn about the different sororities and why I may want to choose one over another? I'm lost, but would love to be part of a great group with a purpose. If anyone can help me, I would greatly appreciate it!!

E-mail me @
Kayagirl80@aol.com. Thanks!!