I found this really cool video on vimeo when I was looking through different blogs. It's about a three minute clip on street art, and one artists opinion on how he feels about it compared to different mainstream arts. My favorite part is how he describes it as "dropping a colorful bomb on the planet." I thought that was really cool/true.
Here's the link to the video:
Also, I know I posted about this documentary last semester but if you like this video or street art in general check out Beautiful Losers. It's a really inspiring and interesting documentary.