The extermination plans have been finalised – six of the UK’s largest ISPs have agreed to crack down on music piracy by, er, sending out some letters.

The deal, partially negotiated by the government, will see “hundreds of thousands of letters” sent by ISPs to their users who are currently sharing a massive folder of music with who ever else happens to be using the internet at the same time.

BT, Virgin, Orange, Tiscali, BSkyB and Carphone Warehouse have signed up to the stern-letter-sending programme, something that Virgin’s already…