Just like the weather, a local economy is driven as much by micro-climate swings as it is by seasons and global climate changes. The SF bay area is especially influenced by its local economy, which can move in polar opposite directions to the economy of the rest of the country.
Here's my assessment from 2009, I'll be publishing the 2010 assessment here soon:
Here's my assessment from 2009, I'll be publishing the 2010 assessment here soon: