420chan is an imageboard based on cannabis culture but has expanded far beyond just cannabis. This one has survived since 2005 and is still active today. Marking as dead 7-21-22 - loads to cloudflares offline cached page. Also from this link it sounds like the admin was doing sketchy stuff. Feel free to comment below if you have more accurate info.
314chan is an image board allowing anonymous posting. It has a variety of boards. Marking as dead as of 3-24-2022
https://www.allchans.org/image-boards/ My goal is to build out a post for each image board and add tags which can be searched or found using the tag cloud on the side bar. I cannot keep the old style of direct board links up to date anymore, it is too much work. Many times I was adding new sites by request only to removed them a week later when the website goes down.
