Below are lists that have been active on Public Lab in the past, but are currently inactive. (**Inactive in this case means that no one has posted to it in at least 18 months). There are still participants in each group. Any group can be joined and posted to moving it back to active status.
plotz-3d - Everything about 3D printers, especially the Rep 1s that were donated to Public Lab by MakerBot Industries.
plots-education Started at the 2013 education-themed barnraising, this group is for teachers of all varieties!
Writing Working Group - started at the 2013 barnraising, this group is for folks interested in writing articles, conducting interviews, assembling case studies, and more!
Open Pipe Kit - for folks lowering the bar to environmental monitoring with Raspberry Pi computers.