Tweets not on menu at Silicon Valley dinner

Want to know what President Obama and Silicon Valley leaders dished about during a dinner Thursday night? Well you won't find much on Twitter, Facebook or the blogs of the CEO's companies.

Twitter chief executive Dick Costolo was uncharacteristically taciturn about the dinner. The reason was, er, technological. About midnight, Costolo responded to a question by Twitter employee Jessica Verrilli, who asked about details of the meeting, with a mere:

"@jess sadly no. i was in a part of the bay area where the tweets cant get in or out!"

Yes, the home of John Doerr, a partner of Kleiner Perkins Caufield & Beyers, is in the Woodside section of the Bay Area. Although neighboring Menlo Park is the center of Silicon Valley's corporate life, the wooded area is notoriously lousy for cellphone service.

Facebook chief executive Mark Zuckerberg had nothing on his Facebook page. Steve Jobs of Apple hasn't said anything, either. And the companies have been quiet.

But that's to be expected. The White House said the meeting was private, closed to reporters.