This sounds like a great project and opportunity. We’re working on building a list of community libraries/archives and other resources at http://www.queeryparty.org/resources. Here’s what i know of in your area:
Bitch Community Lending Library (Portland, OR)
Transgender Reference Library and Circulating Collection of the Q Center/LGBT Community Center (Portland, OR)
GLBT Historical Society (San Francisco)
But we’re pretty west-coast Centered here, so if you know of anything else we should add to our list to represent your part of the country, please let us know!