Scott wrote: "In my humble opinion, the bay area is successful because of its extremely liberal social climate. It attracts talented people from all walks of life, and from every corner of the globe. And talent attracts talent. This trumps the progressive economic policies that the left here tries to push on everyone."

That's an overreach, IMHO. Silicon Valley became a VC and high tech hub for multiple reasons that, over time, became a self-sustaining competitive advantage (talent attracts talent). I lived in SF for ten years and only worked for venture backed firms.

The liberal:conservative ratio is not as slanted as you might think. However, a key factor is that the Bay Area attracts hardcore extremist liberals who...

Using Google's site search capability, I looked up two terms on the NYTimes site.

"liberal democrat" = 3,810 hits
"conservative republican" = 6,340 hits

While Democrats currently outnumber Republicans in Congress the difference probably evens out over time (depending on how far back in time Google searches). Thus, it's hard to conclude anything other than bias to explain why Republicans are twice as likely to get the (intended) pejorative label versus Democrats.

So there you go, liberal media bias explained by the numbers.