Sources

SW & HW & documentation of Raspberry Pi

• https://www.raspberrypi.com/software/
• https://www.raspberrypi.com/products/
• https://www.raspberrypi.com/documentation/

Official tutorials

• https://www.raspberrypi.com/tutorials/

Projects

• https://projects.raspberrypi.org/en/projects
• https://www.hackster.io/raspberry-pi/projects
• https://www.instructables.com/circuits/raspberry-pi/projects/
• https://randomnerdtutorials.com/projects-raspberry-pi/
• https://community.dfrobot.com/search-raspberry%20pi.html

Magazine

• https://magazine.raspberrypi.com/issues

AI KIT with Raspberry:

• https://www.raspberrypi.com/documentation/accessories/ai-kit.html
• https://www.raspberrypi.com/documentation/accessories/ai-hat-plus.html

YOLO with Raspberry Pi

• https://docs.ultralytics.com/guides/raspberry-pi/
• https://pyimagesearch.com/category/raspberry-pi/

The best of Raspberry Pi 

• https://github.com/thibmaek/awesome-raspberry-pi