The Occupy Wall Street movement's Occupy Philadelphia branch, seeking jobs, punishment for unnamed criminal financiers, and, you know, revolution, was setting up at City Hall at 9 a.m. Dozens of young people, some with signs - "They Control the Past, We Control the Future! We Are the 99%!" - were arriving at Dilworth Plaza on the west side of the towering stone pile.
The courtyard and the south, west, and northeast sides of the ornate stone government center were blocked with police and metal fencing, though officers let city workers in through side doors. White-shirt police commanders and TV reporters congregated in front of the closed north entrance. Nobody was yelling yet.
Meanwhile, Philadelphia- and San Jose-based ListenLogic.com, which tracks Twitter and Facebook posts for mass-market consumer companies and other clients, was declaring the protesters now comprise an "Elevated Threat" to US corporate interests.

(Bloomberg story on California and DC protests, NY arrests, sympathetic comments by billionaire BlackRock Inc. boss Lawrence Fink here.)

According to ListenLogic's report, which tapped 1 million Facebook and twitter posts, Philadelphia ranks next behind New York, LA, Boston and Chicag in social-media posting referencing the protests, with more than 7,500 accounts here referencing Occupy Wall Street events, vs 117,000 in New York.  
(The data also show Philadelphia Occupiers favor Facebook over Twitter by a wider margin than elsewhere. What to make of that?)

As in New York, Philadelphia Occupiers are camping on public property. In the big organizing meetings at the nearby Arch St. Methodist Church, nobody was talking much about taking over, say, the plaza next to Comcast headquarters or Verizon's offices or other prominent corporate sites.

According to ListenLogic's postings, it's different in Charlotte and Boston, where Occupy groups have been targeting Bank of America, which has headquarters offices in both cities but is a relatively minor presence among the mostly out-of-state (and non-Wall Street) banks that do business in Philly.