For the whole year, I've been tweeting and collecting UI/UX tips. I end up with more than 120+ of them.
Not all of them were good, some were controversial, some were opinionated. I removed the worse and compiled the rest in 100 tips book.
I tried to provide some external resources that are related to the tip or that provide some proof.
Every week I send UI/UX articles in my newsletter. Starting from simple tips, ending with complex articles covering advanced UI.