Radical and left-wing collections update

This is just a note that I have made some changes to the list of radical and left-wing history collections (see above on the right). As the list nears 300 collections listed, I have organised the list into categories, primarily by country or topic, to help people find what they’re looking for.

I hope this makes navigating the list easier. As ever, please let me know of any collections that I’ve missed, or if there’s any broken links.