GreekChat.com Forums - this one has gotten a lot of press in Chicago...

I am so showing my older sister this site - she will get a huge kick out of it! she lives in Lincoln Park and she knows so many girls who are probably members of this... being southside natives, we laugh at this stuff ;)

oh this is the best:
Is it required that all Trixies look and act alike?
Emphatically No! Many people believe Trixies must look and act alike, for some silly reason. But the truth is that the Society and its members are a tediously diverse group. A cross-section of the Village's residents reveals that Trixies often choose to look and act like their best friends and coworkers, but these girls often take small, subtle risks to differentiate themselves from their peers. For example, when Kate Spade handbags were first introduced, all Trixies bought the standard black model because that's what everybody else did. Nowadays, however, some Trixies venture away from the standard black bag and buy blue, green and even white bags. Other Trixies have been known to buy white Jettas, or stray from Starbucks and buy their Lattes at places like the Corner Bakery, Seattle's Best, Caribou or even Peet's.

haha, and this - i can't get enough of this site, it cracks me up!

The Pixie
The Pixie is a junior level of membership offered by the Society, geared towards college-aged girls who have not yet entered the workforce but who wish to begin the Lincoln Park socialization process. Those girls who are members of more prestigious Sororities will have preference over those who are not. Talented Pixies may be selected for the Society's competitive and prestigious internship programs.