There’s a lot of pixel art guides out there. Here are the best I’ve found
Sites where pixel artists post their art in forums or their own galleries
Galleries of sprites ripped from games
Video tutorials or walkthroughs showing different techniques.
Places that have interesting or different uses for pixels
Resources to help your pixeling or game-making, or just fun experiments
The gaming industry isn’t working with pixels much anymore, but sprites are alive and kicking with fan-made game engines
Sites that may or may not be related to pixel art, but worth checking out