We didn't take any formal notes, but our discussion included the following:

Zine community is permeable: make a zine, and you're part of the scene!

How do you buy zines when you're not part of the scene?
Be honest about what you're doing: include a note about your collection on the website, maybe even print something out to distribute at zinefests.

Would be useful to have an online guide to starting a zine library, perhaps at http://zinelibraries.info/