Also remember that there was a very pro-George W. Bush sentiment in Silicon Valley in 2000, but eight years of the pro-war, pro-deficit spending Bush administration was enough to turn things around in 2008.
From 2008:
http://news.cnet.com/8301-13578_3-10079225-38.html
Calling venture capitalist Tim Draper an ardent Republican is something of an understatement. In 1999, he was enough of a fan of then-candidate George W. Bush that he chaired three fundraisers over a year before the actual election. Salon once dubbed him "George W.'s point man in Silicon Valley." The Draper, Fisher Jurvetson managing partner is a longtime proponent of limited government, free markets, and libertarian concepts like school vouchers, making him a natural fit for a political party whose platform lauds "lower taxes, reasonable regulation, and smaller, smarter government." This year, though, something odd happened. Draper gave $2,300--the legal maximum--to Barack Obama and zero to John McCain. Draper also did something that would have been unthinkable in the days when Bush was touting laissez-faire principles: he disclosed publicly that he will vote for a Democrat. [...]
From 2008:
http://news.cnet.com/8301-13578_3-10079225-38.html Calling venture capitalist Tim Draper an ardent Republican is something of an understatement. In 1999, he was enough of a fan of then-candidate George W. Bush that he chaired three fundraisers over a year before the actual election. Salon once dubbed him "George W.'s point man in Silicon Valley." The Draper, Fisher Jurvetson managing partner is a longtime proponent of limited government, free markets, and libertarian concepts like school vouchers, making him a natural fit for a political party whose platform lauds "lower taxes, reasonable regulation, and smaller, smarter government." This year, though, something odd happened. Draper gave $2,300--the legal maximum--to Barack Obama and zero to John McCain. Draper also did something that would have been unthinkable in the days when Bush was touting laissez-faire principles: he disclosed publicly that he will vote for a Democrat. [...]