General Motors

General Motors has pulled $10 million in ads from Facebook because they just didn't work, according to The Wall Street Journal. GM is the first major advertiser to indicate disappointment with Facebook and reduce its ad spending on the site.

Thanks to strong new products, hard work, and the American taxpayer, GM continued its profitable ways in the first quarter. The world's largest automaker reported a profit of $1 billion on the strength of its operations in the U.S. and China.

Automakers reported their sales Tuesday. Toyota and Chrysler saw big U.S. sales gains in April, but they came at the expense of General Motors and Ford.

Let's go over some of the items that will help shape the week that lies ahead on Wall Street: Warren Buffett talks; plastic wins; organic food does too; GM reads its odometer; and recent IPOs check in.

News that the Treasury Department had frozen or reduced executive salaries at companies bailed out under TARP prompted a range of reactions, but here's one you probably didn't hear.

Nearly 70 top executives at three companies bailed out by the taxpayers during the 2008 financial crisis -- AIG, Ally Financial and GM -- were ordered to take pay 10% cuts by the federal government, and the CEOs had their pay frozen at 2011 levels.

Thanks to TARP loans that saved GM, the Treasury ended up with a major stake in the world's largest automaker, and it still holds 500 million shares -- 32% of the company. Here's the reason it won't be selling them any time soon.

General Motors really wants you to love the Chevy Volt, but the GM car everyone actually lusts after is the Camaro. Now, with automakers under pressure to improve fuel economy, GM faces a challenge -- how to update a gas-guzzling V8 icon for a greener world.

Bad news for GM: The Chevy Volt still isn't selling the way the automaker hoped it would, so it's temporarily halting production of the battery-powered hybrids for five weeks. Worse news for GM: Shutdowns like this only make the Volt a harder sell.

U.S. car sales just hit their highest level in four years, and that's good news for economy watchers. Falling unemployment, more cooperative lenders, and rising consumer confidence all contributed to the boom. So if you're looking to buy, what does this all mean for you?