PetraPixel: This site has plenty of tutorials for beginners, and a really amazing (mobile friendly!) layout generator that I used to make my site! You can learn a lot through the notes in the code, which tell you exactly what everything does! It's all incredibly intuitive!
Resources
Coco's Pixel Safari: For all your graphics needs! This site contains a vast collection of stamps, buttons, blinkies, pixels, gifs, and so much more!! Their directory and webrings can also point you to some really cool sites with even more resources!
Jameso2's Neocities "site to user-profile tool": This neat little tool adds a bookmark to your bookmarks bar that will take you any neocities user's profile if you are currently on their website! It's really helpful when trying to follow a neocities user!