Farhan’s December 10 arrest was reported last week on the Internet and has been condemned by bloggers in Egypt, Tunisia, Morocco and Bahrain. The Saudi news media have not yet reported the arrest, but more than 200 bloggers in the kingdom have criticised Farhan’s detention, and a group of supporters have set up a Free Fouad website. Farhan, who was educated in the US and owns a computer programming company, was arrested at his office in Jiddah and then brought home, where his laptop was confiscated, said his wife, who spoke on condition that her name not be published to protect her privacy. “They arrested him because of his blog. I haven’t seen him since. We don’t know where he is,” she said.

Saudi Arabia, an absolute monarchy that restricts press and speech freedoms, does not allow political parties, civil rights groups or public gatherings. But since King Abdullah took the throne in 2005, official tolerance of criticism and debate has grown. Even so, Farhan told The Washington Post and others in early December that an Interior Ministry official had warned him that he would be detained because of his online support for a group of men arrested in February and held without charge or trial. Farhan’s friends have maintained his blog during his detention and posted on it an e-mail he had written to a friend shortly before his arrest.

Farhan wrote that he was told he would be released if he signed an apology for his activism.

“I’m not sure if I’m ready to do that. An apology for what? Apologising because I said the government lied when they accused those guys of supporting terrorism?”

In a post in December, Farhan listed his 10 least favorite Saudi personalities, including a businessman prince, a prominent cleric, a minister, a mayor and the head of the judiciary. Farhan’s arrest could either scare other bloggers from criticising the government or create a backlash, said Ahmed al-Omran, 23, who blogs as Saudi Jeans.

Farhan has had trouble with the authorities before. In 2006 he was told by the Interior Ministry to tone down his blog and to dissolve an association he was forming to protect bloggers’ rights.

He dissolved the group and quit blogging for nine months because of his business interests, he said subsequently. But he went back to blogging even more critically in July. Farhan’s is the first arrest of a blogger in Saudi Arabia.