* w3schools : tutorials on any css/html you could ever possibly need
* stackoverflow : q&a forum where i usually find answers to my css questions
* codepen.io : a place for people to share code snippets + a live code editor i like
* dithermark : super customisable image dithering
* tinypng : optimise images and save some storage space
* remove.bg : remove image backgrounds easily
* colorcodehex : easy online html colour slider