Facebook's business problems are symptomatic of many large digital firms

Facebook is wrestling with a business challenge more traditionally found in legacy media: how do you translate consumers that don’t think they have a commercial relationship with you into relationships that that other firms will pay for?Despite 955 million active users and increasing revenues, the company has lost a third of its share value since its IPO in the spring. The exuberance that surrounded its IPO and overpriced its shares has worn off and investors are realizing that being...