LinkedIn endorsements, Google's mobile Alternate Reality Game, libel laws include Twitter, big changes at social sites; Ragan promo; News That Fits: sponsored digital content, Dan York's report, Media Monitoring Minute from CustomScoop, Coca-Cola reimagines the corporate website, listener comments, survey shows desire to social media ROI tool, TemboSocial promo, Michael Netzley's Asia report; music from the Chris Greene Quartet; and more.