[FuzzieAlum]

Think of them as paralelling various high school organizations:

Social GLOs are like your group of friends that all hang out together, except a little more organized - and with a higher purpose than just having fun. It's like the Moose or Elks, except for college students.

Professional GLOs are the collegiate equivalent of DECA or FLBA or FFA.

Honorary GLOs are the collegiate equivalent of the National Honor Society.