I take briefings from all sorts of vendors every day, from established companies with a new release to emerging companies with what they hope will be The Next Great Idea that the market will seize on. I am always happy to give my opinion and advice, and sometimes it's even taken. But I am usually reticent to write about most of them simply because it's not my job to provide free advertising.

A week after Apple revealed record-breaking sales numbers that drove its value to new heights, the company's fans were shown a bleaker image of Cupertino in a recently published news series. The iEconomy series paints a picture of harsh working conditions in some overseas facilities that manufacture Apple products.

Fitness instructor and personal trainer Yu Hannah Kim has always believed that fitness should be available to anyone. Now, with the launch of her new site, Yufit, she's making that dream a reality. Yufit offers streaming videos for everything from cardio kickboxing and core burn workouts to yoga and stretching.

Andreessen Horowitz announced that it has raised US$1.5 billion for a fund aimed at investing in technology startups. The new fund is launching just as one of the firm's well-known bets, Facebook, prepares to go public. Andreessen Horowitz has an unspecified stake in the social network.

Amazon's stock took a pummeling Wednesday after the online retailer released quarterly figures that fell short of Wall Street expectations, which had been built up in part by past years' holiday performances. Amazon's net income was $177 million, or 38 cents per share, a 57 percent percent drop from a year ago.

Sony announced on Wednesday that Kazui Hirai is being appointed as its president and CEO, effective April 1. Current Chairman, CEO and President Howard Stringer will become the chairman of the board of directors in June. Sony has had a turbulent year, so a switch in leadership might help the company find a smoother road.

AOL delivered a little bit of something for everyone with its Q4 earnings report -- good news, bad news, and hope that its many different initiatives are on track to pay off for the company. First the bad news: AOL reported a profit of US$22.8 million, or 23 cents a share, that was down from the $66.2 million, or 61 cents a share, it earned in the same period a year earlier.

Superbowl Sunday, the biggest, flashiest U.S. sports event of the year, is also the country's biggest advertising event of the year, carrying some of the cleverest ads on TV. This year, Superbowl Sunday may also mark a watershed in advertising, with advertisers reaching out beyond TV to go into digital media in a big way.

Every tool has a purpose. That's never more clear than when you see a neophyte do-it-yourselfer trying to use a tool for a purpose other than what it was designed for. For instance, anyone wielding a hammer while trying to fix a car's engine is probably not going to succeed.

As a long-time Mac and iPhone user, I always enjoy seeing new people I work with embrace the Apple way. At the same time, while out and about at work conferences and trips, I consistently see more and more iPads and iPhones. I'm sure some of this is my ability to recognize an Apple product while my ability to spot two different Android-based phones is a little less refined.