Think of a world of politics without spin doctors, teleprompters, stage-managed conferences, party headquarters, manifestos, cynicism or even leaders.

One does exist. It is the world of the Purple People.

They are not some strange, colour-corrected version of the Na'vi, found in Avatar.

They are human beings, they mostly live in Italy and they are angry - angry with Prime Minister Silvio Berlusconi.

They are called the Purple People because they have adopted the colour purple as a way of identifying themselves.

Why purple?

"Because no other political party uses it," says Ginevra Tosoni, an unemployed graphic designer who has found her way to this extraordinary new political movement by way of the internet.

Informal movement

The Purple People organisation was founded somewhere on Facebook.

There are rumours about who started it a few months ago, but no-one is quite sure.