These are the categories that I can think of off the top of my head that are included in the members-only portion of the Alpha Gamma Delta Website.

Collegiate/Alumnae Chapter/Club listings and contact information/list of officers
Sister Search-- Chapter and Year of Initiation (email and snail mail addresses are also listed if the member prefers to list it)
Today's Birthdays
Scrapbook
Recruitment/Legacy information forms
Job Openings
Surveys
10 Songs Every Alpha Gam Should Know
CHAT!
An address book for your sisters' addresses