I just got off the phone with Grant Leuning, a zine archivist at the Minneapolis Community and Technical College Library. He emailed me inquiring about my old zine Karma Lapel, and I called to learn more about the archive -- I currently donate all the zine-related materials I receive to DePaul University's Chicago Great Lakes Underground Press Collection.
In any event, Grant says that the collection was started when Utne -- and perhaps Chris Dodge -- donated a bunch of material to the library. Since then, the archive has accepted "basically anything we can get our hands on." And to their credit, they index the collection: by title, author, location, date, and subject -- throughout the issues on hand. That's more than DePaul can say; I think they only index by title.
This week, I'll mail the MCTC a full back issue run of Karma Lapel, if I'm able. And if you self-publish, you should consider supporting the archive, as well.
MCTC Library, 1501 Hennepin Ave., Minneapolis, MN 55403.