Here are some of the sites used to research and write this, together with conversations with a London graffiti artist
http://en.wikipedia.org/wiki/Sickboy_(artist)
http://sweettoof.com/
http://banksyforum.proboards.com/thread/56924/sickboy-street-art-photos
http://londonmuralpreservationsociety.com/murals/Hackney-Peace-Carnival-Mural/
http://en.wikipedia.org/wiki/Banksy
http://depajaro.blogspot.co.uk/
http://www.thelondonvandal.com/2012/07/underbelly-dds-crews-london-graffiti-dvd/
http://www.flickr.com/photos/42276448@N07/9309363740/in/photostream/
http://www.artofthestate.co.uk/index.html
http://www.firstandfifteenth.net/
http://www.rockingthecity.com/tubes8587.htm
http://www.flickr.com/photos/mssarakelly/9447168388/
http://www.theguardian.com/artanddesign/2010/nov/11/princess-hijab-paris-graffiti-artist
http://www.flickr.com/photos/posterboynyc/6841795883/
http://sixnames.wordpress.com/page/7/
http://www.goldengreen179.com/
http://en.wikipedia.org/wiki/Culture_jamming
http://en.wikipedia.org/wiki/Princess_Hijab
http://artseng.wikispaces.com/Casey
