(Mainly just sort of a haphazard collection with a few gems, some online only)
The publishers of the Whole Earth Catalog started publishing a magazine called Coevolution Quarterly a couple of decades ago. The name was later changed to Whole Earth Review and then to just Whole Earth. This was easily my favorite magazine in the world. Anything could turn up in any issue. They stopped pubishling long ago. Some articles from past issues are online.
AEON.CO Online magazine with excellent articles.
The Sun - thesunmagazine.org
Yes! Magazine - yesmagazine.org
Nama Rupa - www.namarupa.org TOTALLY AWESOME yoga magazine. Now online only.
Mother Jones - www.motherjones.com
Adbusters - www.adbusters.org
Z Magazine - www.zcomm.org/zmag/
Arthur (archives only)
Fifth Estate - www.fifthestate.org
Salon - www.salon.com
LA Weekly - www.laweekly.com
Slate - www.slate.com
Harper's - www.harpers.org
Urb - www.urb.com
In Context - www.context.org/iclib/ - archive of back issues
Wired - www.wired.com
Utne Reader - www.utne.com
Varla - www.varla.com
The Atlantic - www.theatlantic.com
Discover - www.discovermagazine.com
Nature - www.nature.com
Scientific American - www.scientificamerican.com
Gnosis - www.lumen.org (archive and back issues only)
Mother Earth News - motherearthnews.com
Village Voice - www.villagevoice.com
Nerve - www.nerve.com
Juxtapoz - www.juxtapoz.com
Shaman's Drum - www.shamansdrum.org
Complete online archive of New York magazine Avante Garde - 1968-1971 (14issues).
Complete online archive of London magazine Oz - 1967-1973.
Slade's Home Page
Revised 11/27/17, 03/02/15