Best

Facebook's International Discordian Society Est. 2015 - The best Discordian Facebook group.
Historia Discordia - Contemporary Blog Charting Historical Discordianism
Principia Discordia - Website including a comprehensive PDF repository, an active forum and IRC channel.
RAW Illumination - Blog focussed on the life and work of Robert Anton Wilson

Blogs

Non-English Language

German
Aktion23 Forums

Facebook TUMBLR TWITTER ETC

Tumblr
Bwansen
Fractal Cult

Twitter
Daisy Eris Campbell

Other

Wikipedia Page