Twenty-five people were arrested for disorderly conduct on Saturday at the beginning of three days of festivities planned to re-energize the movement, which fell into disarray after countless arrests, in-fighting and an eviction from Zuccotti Park last November.
"This weekend we will mark the occasion of our anniversary by once again showing the powers that be that we see what they are doing, and that soon enough the whole world will again as well," said a message on the Occupy website.
The scene was celebratory today as members enjoyed a concert in Foley Square and attended workshops on civil disobedience in preparation for Monday's march.
At 7:30 a.m. on Monday, one year to the day the movement began, protesters plan to create "a swirl of mobile occupations of corporate lobbies and intersections" in the city's Financial District, which is home to the country's largest banks and the New York Stock Exchange.