The funnest part of the DA tumblr for me is checking out all the talented artists that follow us. My current fave is the blog of Mariano Andrés Bergara. He seems to be unstoppable when the mood to draw strikes because whether its in a sketchbook, photograph, or on the street--no surface is safe from his doodles.
If you're addicted to tumbling as well as doodling, follow Doodlers Anonymous on Tumblr for even more daily inspiration. You might even see yourself on there!