I am pretty sure these are all new resources for everyone, enjoy!
(Mostly) Free Audio: There may be some licensing concerns, always check the FAQ.
http://www.pantone.com/color-finder?from=pb – Pantone color picker
https://color.adobe.com/explore/?filter=newest – Adobe’s color palette gallery
http://html-color-codes.info/ Translate HTML colors to RGB and vice versa
http://www.pixeden.com/ – A premium site with free collections of design templates, icons, vectors, etc.
http://dryicons.com/ – A premium site with a free icons gallery
https://www.toptal.com/designers/subtlepatterns/ – A pattern gallery, with instructions on adding it to websites, etc. I mostly use it to enhance the backgrounds of my content
https://spark.adobe.com/ – Has 3 offerings – Post, Page, and Video – all free and available the web and on tablet/phone for making animated videos, “social graphics” (memes), and web stories
https://www.canva.com/ – Great for making “social graphics” but the real gem is their how-to resources to give you some great ideas
https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_font – HTML test environment. I use this to write my automated CourseMill emails, so I know the HTML code is going to look alright when the emails arrive to learners.