NetNet's John Carney is on the scene in lower Manhattan. Here are his updates on what's going on.
3:48 P.M. : A group of about twenty protesters went into the subway, they plan to occupy the 'R' train from Union Square to Time Square.
3:47 P.M. : Students from various New York City colleges are making speeches to the crowd at Union Square. Police presence is minimal and the crowd is friendly and upbeat despite the frigid temperatures.
3:17 P.M. : There are now several hundred people at Union Square.
2:44 P.M. : A hundred or so students just arrived at Union Square park.
2:26 P.M. :Many protesters have left Zuccotti Park for Union Square for what they are calling 'Occupy the Subway.' They are planning to gather at subway stations in Manhattan including Union Square, 125 st., 23rd st., as well as other major stations in the Bronx, Brooklyn, Queens and Staten Island.