AUTL's rise and fall was a classic "pump 'n' dump" scheme perpetrated on stock message boards practically every day.

FORBES: Dangerous Chatter

Mr Blair's message came ahead of a nationwide petrol boycott of garages - "Dump the Pump" - planned for 1 August, which has attracted a huge amount of support via the Internet.

BBC: Motorists hit by petrol 'rip-off'