Drawball
Drawball is a website that hosts a large circular image onto which visitors can draw using a limited quantity of virtual ink. In addition to individuals’ small-scale drawings, large virtual communities have collaborated to form larger images or logos. Drawball has become a battleground for image prominence, as users contribute to their own images or vandalize those of others.
To draw on the Drawball, one must first zoom in to the maximum depth, then select a color and pen size. There are six different pen sizes and a color selection tool. Drawball requires users to complete a simple Eulerian path puzzle before drawing, to help prevent use of macros. All new users begin with 15% ink, which slowly regenerates. Drawball identifies users by IP address to enforce its ink rationing system. If the site operator finds a particular drawing with good quality, the drawing is protected from vandalism, and the artist who drew it may be rewarded with unlimited ink.
