I know that in most GLOs, pledge classes are names sequentially by greek letter - starting with Founding, then Alpha, Beta, Gamma, etc. I've also know one GLO (perhaps it's particular to a chapter, but I don't know) where the pledges choose a class name comprised of greek letters, and it doesn't have to be sequential.
AKA2D, I had a similar experience re: posts congratulatory posts - I shared the good news of our recent candidate class's initiation on greekchat recently, and only a small number of people responded. Perhaps it's because my organization is newer...I don't know, though.
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Alpha Sigma Kappa - Women in Technical Studies
[This message has been edited by equeen (edited February 03, 2001).]