4chan

4chan is an anonymous imageboard website known for introducing popular memes. It is not an explicitly extremist site, but parts of the forum, especially the /pol/ board, are used for hateful posts that promote racist, white supremacist, antisemitic and misogynistic content.

This database provides an overview of many of the terms and individuals used by or associated with movements and groups that subscribe to and/or promote extremist or hateful ideologies.