http://www.internationalsocialist.org/what_we_stand_for.html
The International Socialist Organization (ISO) is committed to building an organization that participates in the struggles for justice and liberation today--and, ultimately, for a future socialist society.
The ISO has branches across the country whose members are involved in helping to build a number of struggles: the movement to stop war and occupation, fights against racism and anti-immigrant scapegoating, the struggle for women's rights like the right to choose abortion, opposing anti-gay bigotry, and standing up for workers' rights.