Shares of San Francisco-based Wells Fargo fell 2 percent today, following a court ruling in Massachusetts. Also, United Airlines flight attendants angry about the pace of contract negotiations rallied at San Francisco International airport today.

There were a lot of empty cubicles in Silicon Valley this week as thousands of people left town for Las Vegas and the annual Consumer Electronics Show.

Blue Shield of California has confirmed its plans to raise rates by an average of 30 percent for almost 200,000 of its individual policy holders. Also, Anthem Blue Cross is trying to raise its rates again by an average of almost 10 percent for individual policy holders. The proposed hike follows another in October that averaged 14 percent.

California's horse-racing business is not what it used to be. Track attendance and betting have declined for years. Now, the Legislature has approved a new kind of betting in hopes of helping the industry revive. The opportunity has attracted a British company to set up shop in San Francisco.

A deal between Facebook and Goldman Sachs has prompted federal regulators to consider revising their financial disclosure rules for privately held companies. Also, a new report predicts the market for tablet computers will continue to explode this year.

Several California "green tech" companies may be ready for their initial public offerings this year.

Bankruptcy filings in California surged 19 percent last year, despite a slowdown nationwide. Bay Area unemployment rates are also on the rise, according to new figures released today by the labor department.

It's a great time to be an entrepreneur -- at least that's what graduate students from MIT's Sloan School are hearing from Silicon Valley executives this week. The visit is part of the school's annual "Tech Trek" to give students a reality check about the job market.

The Goldman Sachs investment in Facebook is expected to reverberate throughout Silicon Valley. It all depends on what Facebook decides to do with $500 million.