NEW YORK, N.Y. - Facebook says that an independent audit found its privacy practices sufficient during a six-month assessment period that followed a settlement with federal regulators. Facebook Inc. said it submitted the findings to the Federal Trade Commission on Monday evening. The audit was a required part of the social networking company's settlement with the FTC last summer. The settlement resolved charges that Facebook exposed details about its users' lives without getting the required legal consent.

SAN FRANCISCO (Reuters) - General Motors Co is running ads for a Chevrolet car on mobile versions of Facebook, the automaker's first ads on the social network since publicly announcing its decision to stop advertising on Facebook nearly a year ago. "Chevrolet is testing a number of mobile advertising solutions, including Facebook, as part of its 'Find New Roads' campaign," the company said in an emailed statement on Tuesday.

By Alexei Oreskovic SAN FRANCISCO (Reuters) - Facebook Inc is expanding the advertising system that lets marketers tailor messages to users of the No. 1 social network based on their browsing history, in the company's latest step to refine its ad business. So far, the system has been used to target graphical display ads on the right side of a Facebook user's page, based on websites visited in the past, such as for products or potential vacation destinations.

SAN FRANCISCO (Reuters) - Facebook Inc is looking to improve its search and indexing capabilities by adding the hashtag symbol, one of the most recognizable features of its social networking rival Twitter, according to media reports. The hashtag, which appears as the # symbol, makes it easier for users to follow specific topics of conversation within the ever-changing stream of comments posted on Twitter. Users type the hashtag alongside a keyword - such as #election - at the end of a Tweet, making it easy to group comments on the same topic.