Arguably Twitter's most famous adopter, Winfrey hasn't posted to the service in more than a month. Her Twitter run lasted less than two months, but who can blame her? With a daytime talk show and magazine to run, a close connection to the White House and access to Broadway and Hollywood premiers and celebs, why bother with the banality of 140-character status updates?

Winfrey did just have a 10-day birthday cruise around the Mediterranean, but hardly explains her 33-day Twitter absence. It's possible a long summer break could explain musician Dave Matthews' 24-day Twitter absence, but what's the point of a vacation if you can't rub your friends' virtual faces in all the fun you're having, via Twitter?

At least Oprah and Matthews still have their accounts; Secretary of State Hillary Clinton outright deleted hers sometime after October, when she was still on the celebrity Twitter lists. Like Vice President Joe Biden, who hasn't posted to his personal account since August, Clinton is now tracked by a mysterious, impersonal "UNOFFICIAL TWITTER."

But of course, being on Twitter isn't any of these people's jobs. Not so with Jennifer Preston, the New York Times' Social Media Editor., who was called out this morning (by new-media zealot Jeff Jarvis, naturally) for going a full month without tweeting. Well, we kinda should have figured: Preston only recently unlocked her tweets, then promptly declared she's be "listening more than tweeting," while figuring out how to clamp down on tweeting by others.

But you can't even pay some people to tweet, is the point!

(Top pic via)

For months, Culligan has been digging into the mystery of why Maggie Williams, a longtime Clinton staffer who served as Hillary Clinton's campaign manager and now works for her as a Secretary of State recruiter, used Clinton's taxpayer-funded office to receive correspondence about stock options she received from Delta Financial, a subprime lender.

It's the most obscure imaginable charge. What, does Culligan think Clinton ripped off taxpayers by having a government-paid clerk drop the letter off at Williams's desk? It's hardly a scandal compared to the $1 million-a-year bill the government has paid since 2001 to fund Clinton's post-presidential operation.

It would have been a simple thing for the Clinton camp to brush off the charge as irrelevant. But the move to reclaim Clinton's domain names suggests that the charge has stung nonetheless. What is it about Williams's mailing address that has Clinton's lawyers so worried now — as opposed to any point in the past decade, during which time Culligan pointed presidentbillclinton.com, williamjclinton.com, and williamclinton.com as a gag to the Republican National Committee's website?

(Photo by AP)

Penn repeated the same advice to Clinton, telling her not to worry about being perceived as "warm" or "nice." Gates's image didn't shift until he actually changed from being a hard-driving capitalist to saving the world.

We think Penn's next client should be Facebook CEO Mark Zuckerberg. (Hiring the likes of Penn is perhaps the only job Facebook's new flack, the D.C.-connected but tech-clueless Elliot Schrage is qualified for — so get cracking, Elliot!) After Zuckerberg's disastrous interview with Sarah Lacy at the South by Southwest conference in Austin, Texas this March, I was told Lacy's manner — which struck some audience members as overly familiar — was an attempt to make Zuckerberg, who's robotically stiff on stage, seem more human. In person, Zuckerberg's quite engaging; he needs stage training, not an extra dose of "humanity." Penn seems brash enough to tell him as much. Mark, meet Mark — I think you two need each other right now.

Pace's evidence:

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• number of readers on their Wikipedia pages (Obama 4:1 over Hillary)
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• website visitors (Obama by 2:1)
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• share of Web visitors in Pennsylvania, where the next big primary is being held (Obama by 2:1)
• 
  
• hours spent on each candidates YouTube channel (Obama by 10:1)
• 
  

Given the trends noted above, Obama's increasing momentum, and his dominance across almost every measurable statistic, he could pull out a victory next week in Pennsylvania. This of course would be a disaster for Clinton who has pinned all hope on getting a late boost from the final primaries in order to persuade the party's Super Delegates to hand her the nomination.

Had Pace run the numbers last summer, he'd likely have told us that Ron Paul was set to win the presidency. And let's not forget what happened to the last presidential candidate who had a revolutionary Internet presence, raised millions online and inspired lots of young people to get out and vote. His name was Howard Dean, and his campaign ended with a scream.

Blogger Todd Lappin's theory is all the more entertaining for having a grain of truth. Barack Obama won his Senate seat in Illinois after Jack Ryan, the incumbent, withdrew from the race. Ryan suffered from disclosures that he had asked ex-wife Jeri Ryan "to perform sexual acts with him in public, and in adult clubs in New York, New Orleans, and Paris." Jeri Ryan played Seven of Nine, an escaped drone from the android-alien hybrid Borg, on Star Trek: Voyager. Did one Borg make way for another? Only in the fevered fantasies of bored Valley residents. But it its a little disturbing how readily Obama assimilates new supporters.

Democratic primary

• 113,032 for Clinton (55 percent)
  
• 80,946 for Obama (39 percent)
  
• 9,388 for Edwards (5 percent)

Republican primary

• 44,709 for McCain (50 percent)
  
• 23,050 for Romney (26 percent)
  
• 8,104 for Huckabee (9 percent)
  
• 4,643 for Paul (5 percent)

Not many in the Silicon Valley money crowd support Hillary Clinton. The notable exception is John Doerr, who now counts former VP Al Gore as a colleague at Kleiner Perkins.

The list is lengthier for Barack Obama.

• David Anderson, managing director, Sutter Hill Ventures
  
• John Thompson, Symantec CEO
  
• Gordon Eubanks, former Symantec CEO
  
• Yahoo exec Brad Garlinghouse
  
• Former California gubernatorial candidate, current Steve Jurvetson pal and Tesla Motors board member Steve Westly
  
• John Roos, CEO of law firm Wilson Sonsini Goodrich & Rosati
  
• Google execs David Drummond and Marissa Mayer
  
• Google.org director Larry Brilliant
  
• YouTube founder Chad Hurley
  
• VC Doug Hickey of Hummer Winblad Venture Partners
  
• VC Stewart Alsop of Alsop Louie
  
• Electronic Arts CEO John Riccitielo
  
• Sequoia Capital venture capitalist Michael Moritz
  
• Craiglist founder Craig Newmark
  
• Netscape and Ning founder Marc Andreessen (who also supports Mitt Romney)

(Photo by azrainman)

Granted, Rose's support for Paul and Obama is right in line with the Digg community, where Rose's votes for stories are often influential. But where modern politics really matter — in the wallet — Rose has yet to open up. According to Fundrace, the Huffington Post's campaign-cash tracker, Rose has yet to give anything to Obama, Paul, or any other candidate. Among his coworkers at Digg, only VP of marketing Michael Maser has bothered to put his money where his shovel is: $250 for Hillary Clinton.

The evidence: Lucy's sister Carrie Southworth, pictured, is an actress whose latest appearance was in an episode of CBS's Rules of Engagement. She is married to Coddy Johnson, the field director of George W. Bush's 2004 presidential campaign. Johnson is the son of Clay Johnson, Dubya's roommate at Yale.

Coddy Johnson is also the godson of George W. Bush, according to a classmate at Stanford's business school, where Johnson graduated this past spring, putting him on campus at the same time as Lucy, who recently passed the oral exam for her Ph.D. in bioinformatics.

Larry and Lucy are hosting a reported 600 guests on Necker Island. Surely the couple could make room for her sister's husband's godfather — maybe even his dad. The presence of a sitting president would also explain the extraordinary security measures Page and Southworth are taking.