In the News: GM, Samsung, Intel and more

GM exits advertising on Facebook, raising questions about FB's revenue projections as site boosts number of shares available ahead of Friday IPO.

Samsung loses $10 billion market value on Apple chip loss.

Intel launches employee-curated digital magazine.

American Airlines sees unions reject contract offer.

Amylin attracts interest from pharma rivals.

Apple moves toward larger iPhone screens.

BBC bumps Blue Peter in children's programming shuffle.

Berkshire Hathaway takes stakes in GM and Viacom.

BMW US introduces humorous campaign.

Dish Network CEO defends ad-skipping DVR.

Disney's ABC builds fall lineup around drama.

Google shifts strategy to increase control of Android.

HTC delays smartphone launch in U.S.

Home Depot gets boost from the weather.

JCPenney posts bigger-than-expected loss as it plans ads to explain its multi-tiered pricing model better.

Nvidia moves to lift graphics into the cloud.

PepsiCo deals with new activist investor.

NASCAR has been slowed by shaky economy but will be exposed by Fox on prime time in fall.

T-Mobile cuts 900 jobs.

Twitter co-founder Jack Dorsey wins Cannes Lion as 'media person of the year.'