Hugh Hefner

Barack Obama admitted to Men's Health that he occasionally bums a cigarette on the campaign trail, saying, "I figure, seeing as I'm running for president, I need to cut myself a little slack." [People]

Diddy did not appreciate McCain's much-noted "that one" remark at Tuesday night's debate, and he's posted a video to tell you about it. [Radar]

Leonardo DiCaprio was spotted "snapping photos of the topless Brazilian dancer at the Box," which seems a little creepy. [P6]

Hotelier Andre Balazs was seen having dinner with Renee Zellweger at Swifty's. [R&M]

Hugh Hefner confirmed his breakup with Holly Madison, but filming for The Girls Next Door continues.  read more »

• The city is test-driving "green" buildings, with ventilated air, stone floors that generate heat in the winter and absorb it in the summer, and even a waterfall that humidifies and chills the lobby. But while the Hearst Tower should be all filled up, Larry Silverstein could use a few more tenants in his green building at 7 World Trade. (The New York Times)
• Well beyond the world of Jane Jacobs, contemporary urbanists have found a new way to voice their opposition to city projects: the blogosphere. "Like any developer, Forest City Ratner has had to contend with suspicious community groups, concerned politicians and skeptical editorial boards while seeking approval for the 8.7-million-square-foot venture." (The New York Times)