A LinkedIn community focused specifically on information architecture's role within UX design.
One of the few communities on this list narrow enough to genuinely dig into IA-specific concerns (taxonomy, navigation structure, content modeling), that get glossed over in generalist UX discussion.
Best for designers doing real structural/IA work (complex navigation, large content sites), not a fit if your work is mostly visual UI on top of already-fixed structures.
It's a narrow topic with a correspondingly smaller, slower-moving group: don't expect high daily volume.
A LinkedIn community focused on information architecture's role in UX design.