Below are some cool repositories of free information:

For GIS Data:

The Census has good information. There is TIGRE files. I find NAICS related information and county business patterns and demography in general to be very interesting. Modernity is interesting. How nice and peaceful and abundant things are seeming to become. USGS has some cool tools for understanding the american landscape.

Census Data

https://www.census.gov/geo/maps-data/data/tiger.html

Geologic Tools

https://www.usgs.gov/products/data-and-tools/gis-data

NOAA

https://www.nodc.noaa.gov/access/

Legal Resources

There are various free resources. You usually can find relatively up to date statutes for free online. Additionally two intersting projects are RECAP and Court Listener. Recap helpls aggregate for free PACER data. Court Listener helps aggregate and search court documents by scraping various jurisdiction's web portals.

Court Listener

https://www.courtlistener.com/

RECAP

https://free.law/recap/

For Various Media Content

Below are some cool repositories for free video, vectors, images, phographs, 3d models, sheet music and possibly other mediums. Pixabay has vectors, images and video and is dope. Has a lot of new content and some 4k content from users. Prelinger Archives has good professional quality content some if not all of which can be used. But to be safe maybe consult an attorney if you don't know your own law. Blendswap has cool 3d models some of which are licensed CC0 by their uploader-but I do not warrant that. You can also get sheet music and classical music recordings from Musopen.

Pixabay

http://pixabay.com/

Prelinger Libraries & Archive.org in General

https://archive.org/details/prelinger

Blend Swap

http://www.blendswap.com/

MusOpen: Classical Music Recordings & Sheet Music

https://musopen.org/

What resources and taxanomies of free content have I missed in this limited analysis??

Please reply below!!!