http://drawhere.com/
Using this, you can graffiti on any page on the web you want. The cool thing is that it's interactive between people...i.e. If you used Draw here on the YWS homepage, you'd see my graffiti.
JUST MAKE SURE YOU HIT SAVE WHEN YOU'RE DONE DRAWING.
Also, you have to make an account, but making one is a piece of cake.
Once you have Drawhere bookmarked, come to this page, then click on your Drawhere bookmark. You should see what I wrote.
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