updates
 

When you bumped it I figured it could be updated.

Oh possibly, requires the OP to edit though. It just seemed like you were correcting rather than updating :)

Lambda Chapters
 

WTF, let's get this ball rolling again :)

Alpha Chi Omega - Syracuse University (active)
Alpha Delta Pi - Brenau University (active)
Alpha Epsilon Phi - ??
Alpha Gamma Delta - Northwestern University (inactive)
Alpha Omicron Pi - Stanford University (inactive)
Alpha Phi - UC Berkeley (active)
Alpha Sigma Alpha - Ohio State University (inactive)
Alpha Sigma Tau - ??
Alpha Xi Delta - ??
Chi Omega - University of Kansas (active)
Delta Delta Delta - Baker University (active)
Delta Gamma - University of Minnesota (active)
Delta Phi Epsilon - Adelphi University (inactive)
Delta Zeta - ??
Gamma Phi Beta - University of Washington (active)
Kappa Alpha Theta - University of Vermont (re-active fall 2010)
Kappa Delta - Northwestern University (active)
Kappa Kappa Gamma - University of Akron (active)
Phi Mu - University of Cincinnati (inactive)
Phi Sigma Sigma - ??
Pi Beta Phi - U Cal - Riverside/California Lambda (active)
Sigma Delta Tau - UCLA (inactive)
Sigma Kappa - UC Berkeley (active)
Sigma Sigma Sigma - Indiana University of Pennsylvania (active)
Theta Phi Alpha - Syracuse University (inactive)
Zeta Tau Alpha - Southwestern University (active)

From the list of chapters in the Delta Zeta forum:

" Lambda (1915) - Kansas State University(inactive since 1976) "