The 20-year-old was arrested at a business at Ingleburn, in Sydney’s southwest, on Friday afternoon.
He was charged with recruiting persons to engage in criminal activity and printing or publishing to incite, urge or aid the commission of a crime.
It’s alleged he used social networking sites and mobile phone text messages to organise last Saturday’s CBD demonstration, which led to a series of violent clashes with police.
He was granted strict conditional bail to appear in Penrith Local Court on October 15.
A second man, aged 21, was arrested in The Rocks, central Sydney, on Friday afternoon on suspicion of inciting and promoting the violence through social networking websites.
He was being interviewed by detectives.
It comes as police ramp up their presence in Sydney’s CBD this weekend over fears of a repeat of the violence.