Two Facebook users in their early twenties have been jailed for four years for inciting riots.
Jordan Blackshaw and Perry Sutcliffe-Keenan set up pages on the social networking site encouraging people to join in with the violence.
The riots they planned never happened, but the judge at Chester Crown Court in central England said the stiff sentences would act as a deterrent.
Phil Thompson, Assistant Chief Constable, Cheshire Police, said: “The sentencing policy allows for sentences to have a deterrent impact. Four years for incitement to riot will give a strong message to people who may be disposed to acting in this way.”
Prime Minister David Cameron has urged judges to be tough in sentencing rioters.
As the courts work overtime to try those accused of civil disobedience, the relief efforts continue in the area of north London where the unrest began.
The Prince of Wales and the Duchess of Cornwall visited a Tottenham emergency centre on Wednesday to meet some of the riot victims.
Prince Charles and Camilla met some of the 54 families left homeless after fires ripped through their apartment building on August 6.