A father and son described as "Nazi zealots" have been jailed for a total of 12 years at Newcastle Crown Court.
Ian Davison, a 41-year-old disc jockey, became the first man in England and Wales to be convicted of a terrorism-related offence, involving the lethal poison, ricin. He was given 10 years in prison.
Davison, from County Durham, had already pleaded guilty to six offences including production of ricin.
His son Nicky Davison, a 19-year-old former milkman, was found guilty of possessing terror documents. He received a two-year jail sentence.
The pair had started an extreme right wing online group called the Aryan Strike Force. Nicky Davison's trial heard that they planned to overthrow the government because they believed it had been taken over by Jews.
The website was set up to form a group ready to act and fight against ZOG - Zionist Occupied Government.
Stewart Laidlaw, the Crown Prosecution Service counter-terrorism division case lawyer, said after the sentencing that father and son were "Nazi zealots who believed in white supremacy and revered Adolf Hitler. They hated minority ethnic groups, be they black, Asian, Muslim or Jewish. People should make no mistake about how serious Ian and Nicky Davison were in their hatred of anyone who they considered a 'threat' to 'their' race."