I founded OpenProcessing, a social creative coding website for everyday coders, in 2008, and I have been running the website since. It is like Instagram, but for coding. It is like Github, but for designers, artists and beginners.
Currently it serves to 100k+ users a month, hosts 300k+ projects and it is loved by the community.
The Class Platform on OpenProcessing is also used by thousands of professors to teach coding to students.