From the AACG website:
The Art Alliance for Contemporary Glass is a not-for-profit organization whose mission is to further the development and appreciation of art made from glass. The Alliance informs collectors, critics and curators by encouraging and supporting museum exhibitions, university glass departments and specialized teaching programs, regional collector groups, visits to private collections, and public seminars.
When visiting the AACG website, make sure to spend time browsing their "Collection Pages" where you can see some of the premier private glass collections.
