Oxfam is currently taking entries for the Canvas for Change exhibition. It all seems like a pretty good idea. Paint a canvas that highlights the effect climate change has on the earth's poverty stricken. 

Although human blood, chewed up food, a tricycle and telephone conversations don’t sound like ideal media for creating art, they’re all essentials for Phil Hansen.

Although the Olympic torch's Aussie moment came and went, the controversy surrounding this year's torch relay is far from snuffed out. Alongside the throngs of pro-Tibet and pro-China protestors, street art has played an important role in activism - and raising awareness of just what everyone's yammering on about.