International IWW sites

https://iww.org/

http://iww.ca/

https://www.wobblies.de/

http://iwwisland.org/

https://ecology.iww.org/

http://iwwist.org/

https://iwoc.noblogs.org/

http://iww.international/

https://iwwscotland.wordpress.com/

http://www.bristoliww.org.uk/

https://dorsetiww.wordpress.com/

http://bradfordiww.org.uk/

https://liverpooliww.wordpress.com/

https://iwwgmbsheffield.wordpress.com/

http://incarceratedworkers.noflag.org.uk/about-us/ 

Sites run by Wobblies

https://www.reddit.com/r/IWW/

https://newsyndicalist.org/

http://www.burgervilleworkersunion.org/

https://lifelongwobbly.com/

https://twincitiesgdc.org/

https://en.wikisource.org/wiki/Portal:Industrial_Workers_of_the_World

https://archive.org/details/@iww

Workers Wild West

Sites that often publish IWW related content

https://angryworkersworld.wordpress.com/

https://itsgoingdown.org/

https://libcom.org/

http://www.labourstart.org/news/

IRC 

There’s also a #iww channel on the Freenode IRC network. Just join
our channel using an IRC client of your choice
or visit this link: http://webchat.freenode.net

 Matrix/Riot

Some fellow workers in the union are also testing out Riot which is based on the Matrix protocol, a new open standard for decentralised communication. This service is still in beta.
https://matrix.org/
https://riot.im/

 Discord
There is also a Discord room. Please note that Discord is not open source.
https://discordapp.com/channels/281246467157655552/281246467157655552

 Other sites of friends and comrades

http://www.uvwunion.org.uk/

https://iwgb.org.uk/

http://www.solfed.org.uk/

http://www.cnt.es/

www.fau.org

http://strikemag.org/

https://thebristolcable.org/