A former member of the British National Party has been fined £200 after admitting publishing names and contact details of 10,000 party members online.
Matthew Single, 37, formerly of Church Lane, Brinsley, Notts, was fined by Nottingham magistrates after admitting disclosing data without consent.
Judge John Stobart said the fine was "low" because Single was on benefits.
A BNP spokesman branded the sentence "an absolute disgrace" and said Single should have been jailed.
District Judge Stobart also ordered Single to pay £100 towards the cost of the prosecution.
The charges were dropped against Single's wife, Sadie Graham-Single. Single, an unemployed engineer, was accused in November 2008 of leaking the BNP's membership list in an online blog.
The court heard the couple had relocated to the south of England and the judge upheld an order preventing their new address being released.
Mrs Graham-Single, 30, a recruitment consultant who has one 14-month-old child and is expecting twins, was not in court.
The court heard she gave him the information which he then released.
When police raided his home they found a laptop computer and two memory sticks, which were wrapped in cellophane and hidden at the bottom of a cereal box.
Computer analysis linked the computer to the online blog.
People lost their jobs, received threatening phone calls for months on end and had their homes attacked and he's fined £200. What an absolute disgrace.
I hope someone publishes his new address online.