The Occupy Wall Street movement is growing beyond American borders: Tomorrow, protests are planned in Rome, London, Frankfurt, Auckland, and elsewhere. Italian police are bracing for crowds in the tens of thousands (1,655 have pledged to show up in Rome via Facebook), though other cities expect fewer, Reuters reports. Taking inspiration from the Arab Spring, the "October 15" movement is gaining steam using social media. Facebook, Twitter ( #O15) , and blogs are asking supporters to bring sleeping bags, warm clothes, and food—and to keep things peaceful.
A Facebook page for London's protests boasts 13,000+ followers; 5,000 say they'll attend tomorrow's gathering, though some activists guess the figure will be smaller. "I've been waiting for this protest for a long time, since 2008," says a Berlin man. "I was always wondering why people aren't outraged and why nothing has happened and finally, three years later, it's happening." Click through for more on protest preparations worldwide.