Drawsum.com is an art collaboration that has been running for more than 10 years now. Join in and contribute to the largest collaborative drawing in the world! Currently the canvas is over 5000 megapixel!
All drawings are moderated before being visible to others, and your account level increases or decreases depending on what the moderators think about your work.
Key principles:
1) Freedom - anyone can draw (almost) anywhere.
2) Safety - your work is (fairly) safe from vandalism. and we censor inappropriate content.
3) Infinite space - The canvas grows larger occasionally.
4) Elected moderators - if you draw well you can be selected.