List of additional communities out there (so meta)

I came across this spreadsheet of some communities out their on the interwebs in tech across slack, facebook, reddit etc. There are a few specific communities for women, people of color, the LGBT community and the intersectionality that exists in these groups. Looks like there is support for SWE, Design, Product, Founders, people interested in social impact/social good, etc. Thought I would share!