Drawing from 2013, popped up on my Facebook memories. I drew it at the now defunct website sketchfu. Sadly closed because the owners didn’t have the resources to keep it running and towards the end barely communicated with its users. It was a simple drawing site, a few pen sizes, colour picker and palette, and an opacity and eraser button. It was overwhelmed by users writing youth fiction (is that the term). I was a moderator after drawing a few thousand pictures. It’s hard to monitor places like that. So busy!
There are a lot of other drawing sites out there depending on your skill set. I liked Youdraw (basic black and white), 2draw (complex using applets), floating ginkgo (complex) wetcanvas (I forget). Have a look. I found them before I got an android phone and got directed to stuff via Google play which doesn’t seem to show you community drawing sites.