Huffington said more than 250 people have accepted her invitation to write blogs or personal journals posted on her new Web site on a variety of topics from politics to religion, sports, architecture and entertainment.

She acknowledged that the participants already have access to newspaper opinion pages and other forums to air their thoughts in essay form. But they were attracted to a format where "a zippy one-off is enough to spark a flurry of impassioned replies.

"People are always drawn to any conversation that is passionate and authentic and unfiltered," Huffington said.

The site will not edit or censor opinions. Participants will include "Seinfeld" creator Larry David, Viacom Inc. co-president Tom Freston, former Colorado Sen. Gary Hart, DreamWorks co-founder David Geffen, director Rob Reiner, cable talk show host Bill Maher and actor John Cusack.

"It will be people's voices, including people's spelling mistakes and idiosyncratic punctuation," Huffington said. "Authenticity always draws people."