Two men have admitted inciting terrorist attacks against non-Muslims on websites and in e-mails.
Younes Tsouli, 23, of west London, and Waseem Mughal, 24, of Chatham, Kent, changed their pleas two months into their trial at Woolwich Crown Court.
The pair had links to al-Qaeda in Iraq and spent a year encouraging people to follow the ideology of Osama Bin Laden.
A third man, Tariq Al-Daour, 21, of west London, denies terror charges. His trial is due to resume on Wednesday.
Investigators found on Mr Tsouli's laptop computer a presentation entitled The Illustrated Booby Trapping Course.
A film about how to make a suicide vest was found on a CD at Mughal's home.
The court also heard that Mr Tsouli told Mr Mughal in an online conversation that he, Mr Tsouli, had been asked by al-Qaeda to translate the organisation's official e-book into English.
The book - Thurwat Al Sanam, or Tip Of The Camel's Hump - is said to promote jihad, or holy struggle.
The pair believed there was a "global conspiracy" to wipe out Islam, the court was told.
Mr Tsouli and Mr Mughal admitted inciting another person to commit an act of terrorism wholly or partly outside the United Kingdom which would, if committed in England and Wales, constitute murder.
Mr Tsouli, of Shepherd's Bush, was born in Morocco. Mr Mughal is UK-born.
Mr Al-Daour, born in the United Arab Emirates, denies the same charge.
He is also accused of conspiring to defraud banks, credit card companies and charge card companies, which he denies.