Artnet.com article "Even Banksy, the Elusive Street Artist, Is Stuck Working From Home, Reduced to Doing Street Art in His Bathroom"
"Exit Through the Gift Shop" The story an eccentric French shop-keeper and amateur film-maker who attempted to locate and befriend Banksy, only to have him turn the camera back on its owner. Footage of Banksy, Shephard Fairey, and many of the world's most infamous graffiti artists working.
Surprisingly insightful research paper written to fulfill a requirement for college (the therne of which was Street Art). Links directly to the especially impressive section "What is Banksy's Purpose?"
Thedesigninspiration.com compiled "129 Pieces Of Art By Banksy That Are Seriously Amazing." Worth taking a look at even if you are familiar with Banksy.