These are the sites of Apple II user groups. They may have newsletter, Apple II information, links, message boards, etc. Many of them have files to download.

Call A.P.P.L.E. - http://www.callapple.org/
Apple Pugetsound Program Library Exchange site. Newsletter archives, A.P.P.L.E. Crate BBS, file library. Some areas are only available to members. The Call A.P.P.L.E. magazine and book collections are being offered on DVD.

Polk Apple Core - http://www.afn.org/~pacug/
User group information page and The Tropical Bytes BBS (which doesn't appear to be functional.)

Washington Apple Pi - http://www.wap.org/apple2/forever.html
User group site with some Apple II history and links.