A spammer has been ordered to pay social networking site Facebook, over $870 million in damages for bombarding the site's members with millions of emails about sex products and drugs.

Canadian Adam Guerbuez, of Montreal, and his company, Atlantis Blue Capital, must pay Facebook $436.2 million dollars in statutory damages and another $436.2 million dollars in aggravated statutory damages.

Guerbuez violated the Controlling the Assault of Non-Solicited Pornography and Marketing Act brought into law in 2003.

The largest award to date under the Act, it has been welcomed by Facebook with Max Kelly, the site's director of security, calling it an, "important victory for our users - and against spam and those who create it".