OK, in some order of "interesting":

• https://spdx.org/licenses/ - this is the list of licenses and standard abbreviations
• https://tldrlegal.com/ - this is quite sweet for a simple summary of lots of licenses
• http://ifosslawbook.org/uk/ - this is hardcode lawyer stuff - I don't understand it all, but it explains in detail (!) why we don't have "public domain" in (any of the parts of) the UK
• not FOSS: https://www.lightningmaps.org/#y=52.2172;x=0.0246;z=10;t=3;m=sat;r=0;s=0;o=0;b=;n=0;d=2;dl=2;dc=0; - I assume you all got the real time lightning map when everyone else did...