General Motors failed to disclose that it paid $600,000 for work done by an advertising agency where the wife of GM's chief financial officer works, the automaker said in a regulatory filing on Friday. Pernilla Ammann, who is married to GM CFO Dan Ammann, is chief operating officer and partner of Mother New York. The New York-based firm worked on a project to celebrate the centennial of the Chevrolet brand last year. Read the whole story...

A Chicago frequent flier is suing United Airlines for taking away some of his lifetime perks as a "Million Miler," someone who has flown 1 million miles with the airline. He says United breached a contract with him when the airline combined its frequent-flier program with that of Continental Airlines after the airlines merged, according to a suit filed this week in U.S. District Court. Read the whole story...

Kroger is doubling the limit on its fuel reward program from $1 per gallon to $2 per gallon between May 27 and Sept. 30. Under the fuel reward program, shoppers earn 100 points for every $100 spent at most Kroger Co. stores, with 100 points translating to a 10 cents-per-gallon discount at a Kroger-location fuel center. With the "Hot Savings on Fuel, All Summer Long" promotion, customers can earn and redeem up to 2,000 fuel reward points for up to $2 in savings in one fill-up through regular purchases and special offers. Read the whole story...

Facebook has reportedly been working on a mobile operating system for its own phone since 2010. The social network, which is assembling the core applications needed for a successful smartphone operating system, has rolled out "Facebook Camera." The app loads straight to Facebook. The company also has launched a "Facebook Messages" application and a Facebook app store. It's also looking at buying browser Opera. Read the whole story...

"Matthew 25: Ministries" ships food, medical supplies and personal care items to more than 11 million poor people or disaster victims each year from its facility. The nonprofit charity will become the next local operation to have its inner workings featured in Google Business Photos. The new program offers 360-degree visual interior tours that can be found in Google Maps, Google Places and Google Search when customers search for a business. Read the whole story...

Bath projects, up 17% in the last two years, have become the most common remodeling jobs, says a survey this month by the National Association of Home Builders. Nearly a third of Americans, or 31%, want to remodel their baths compared with 25% who seek the same for their kitchens, according to a December survey by Better Homes and Gardens of 4,000 readers interested in buying or renovating a home. Read the whole story...

Odd ice cream flavors will be big this year, but they tend to drive people to vanilla, chocolate or strawberry. "Crazy flavors get the buzz started," says Ray Karam, senior tastemaster at Cold Stone Creamery. Some examples: Sushi cupcakes topped with Swedish Fish candy; watermelon chip, a watermelon ice sprinkled with chocolate "seeds." Carl's Jr. is testing the Ice Cream Brrrger: chocolate ice cream and icing between two sugar cookies that's made to look like a hamburger with oozing ketchup and mustard coloring. There's also ice cream pizza from Friendly's, Dairy Queen's Candy Shop Blizzard, due in July, which smells like a candy shop, with mini-chocolates filled with hazelnut creme, fudge and caramel blended with dark cocoa fudge and DQ vanilla soft serve. Read the whole story...