New Art: Beyond Banksy

vvoie writes in comments:
well, there are several other "guerrilla" artists out there also worth the interest. i've just written about it on my blog.
and sure enough he has -
New Art: Beyond Banksy
"Banksy was obviously not the first rebel with a cause (though his is not too inventive: 'These Galleries are just trophy cabinets for a handful of millionaires. The public never has any real say in what art they see.') . An old article in the Guardian gives several more examples. There's even a book about purposeful destruction of art (The Destruction of Art by Dario Gamboni) - you can read this pretty crazy book's description at Amazon)."