<p>
A San Francisco federal judge declined Thursday to approve a Facebook privacy settlement concerning the social networking site’s “Sponsored Stories” advertising program, saying he was concerned that the $10 million payout was not adequately explained, and might not be big enough.</p>
<p>
The deal, which does little to bolster the privacy of Facebook’s approximately 150 million U.S.-based users, provides $10 million to the lawyers who sued the social-networking site and another $10 million to charity, in what is known as a<em> cy pres</em> award.</p>