http://hansifer.com/sigmaArrowDemo1.htm
jQuery (edge), HTML, CSS, JavaScript
See: https://docs.google.com/spreadsheets/d/1-D-scV8xtQNELAWIaQKGdyy-dea7oidiM7BovTZyZnM/edit#gid=0
No-Library (pure JS), HTML, CSS, JavaScript
https://www.pokemongomap.info/
jQuery 3.1.1, HTML, CSS, JavaScript
http://wonderopolis.org/wonder/is-taffy-really-made-with-salt-water
http://www.qotsa.com/