David Westin is resigning from his position as president of ABC News, which he's held since 1997, apparently because of a "long-running conflict... over the financial standing of the news division." Of course! Want to read his resignation note?

Break out the Cristal. Mr. Sean Combs turns 40 today. Perhaps he'll get together later to celebrate with Bethenny Frankel of the Real Housewives of New York: She's turning 39. Others blowing out candles today: Matthew McConaughey is turning 40. Kathy Griffin is turning 49. Laura Bush is 63. Survivor host Jeff Probst turns 47. Author Charles Frazier is turning 59. Playwright Jon Robin Baitz is 48. Literary agent Andrew Wylie is turning 62. Publishing industry honcho Jonathan Galassi is 60. Anne Sweeney, the president of Disney/ABC president, is turning 51. Ralph Macchio of Karate Kid fame is 48. And Trishelle from The Real World is 30.

Not only does Diddy get to vote or die today, he gets to celebrate his birthday, too. He's 39. There probably won't be much to celebrate in the White House today, but Laura Bush will have one reason to. She's turning 62. Also celebrating: Literary agent Andrew Wylie is 61. Playwright Jon Robin Baitz is turning 47. Book publisher Jonathan Galassi is 59. Matthew McConaughey is celebrating his 39th. Kathy Griffin is 48. Disney/ABC president Anne Sweeney is celebrating the big 5-0. Walter Cronkite is 92. Survivor host Jeff Probst is turning 46. Author Charles Frazier is 58. And the Karate Kid, Ralph Macchio, is 47.

Last Friday's ranking of the top-earning actresses in Hollywood was just a tasty appetizer for the Reporter's annual, year-end feast celebrating show business lady-potency, their Power 100 list of the most influential females in a still male-dominated entertainment industry. Determined to avenge last year's loss and regain the Iron Tiara she's held in three of the last four years, Disney Media Networks co-chairman Anne Sweeney spent the last 12 months engaged in a physically punishing training regimen in preparation for her rematch with 2006 titleholder, Sony's Amy Pascal, in last night's pay-per-view Power 100 Championship Pillow-Fight Presented by Lifetime Networks

For the second straight year, The Hollywood Reporter has named Anne Sweeney, co-chairman of Disney's media networks and president of the Disney-ABC Television Group (take a breath), the Most Powerful Woman in Hollywood.* (We'd do the THR one better and declare her Most Powerful Woman in the Universe, but we've long posited the existence of a planet populated entirely by a super-race of female entertainment executives, who dispatch their weaker citizens to Earth to run things until the eventual invasion.) As a reward for Sweeney's ability to keep the heel of her Manolo Blahniks firmly on the throats of power-list competition for the past 12 months, like MTV's Judy McGrath, Universal's Stacey Snider, and Sony's Amy "Can We Just Forget About 2005, Please?" Pascal, she's apparently been rewarded with a sassy new head shot on the Reporter's website (and reproduced here). Congratulations, and fingers crossed for the dynasty-solidifying threepeat!