- Higher Computing Science – https://sites.google.com/rgc.aberdeen.sch.uk/rgc-highercomputing/home
- Codecademy – https://www.codecademy.com/learn/learn-python
- Programiz – https://www.programiz.com/python-programming
- W3Schools HTML – https://www.w3schools.com/html/default.asp
- W3Schools CSS – https://www.w3schools.com/css/default.asp
- HTML Tutorials – http://html.net/tutorials/
- Mozilla – https://developer.mozilla.org/en-US/docs/Learn/HTML
- HTML Periodic Table – https://www.madebymike.com.au/demos/html5-periodic-table/
- Khan Academy (CSS/JS) – https://www.khanacademy.org/computing/computer-programming/html-css-js
- BBC Bitesize Higher – https://www.bbc.com/bitesize/subjects/zxmh34j
Thanks to Mr. M. Hay for collating these