Web & Social
Facebook has been seeing huge growth in the amount of traffic it sees from mobile devices, but so far making money on that traffic has been a struggle — CEO Mark Zuckerberg recently noted that mobile only makes up 14 percent of ad revenue, despite 60 percent of its users accessing the service from mobile devices. The Wall Street Journal reports on the company's changing mobile ad strategy, including a Black Friday partnership with Walmart for the biggest mobile ad campaign in its history. The retailer mounted its 50-million-ad offensive by prepurchasing the space ahead of its competitors in an Apple-like move to corner the market. Facebook is experimenting elsewhere, as well, providing special video ads for the launch of Samsung's Galaxy S III, a first for the social service.