A collection of 10 tweetable digital marketing trends for 2015 from Adam Singer of Google, Ann Handley of MarketingProfs, Brian Clark of Copyblogger, Brian Solis of Altimeter Group, Jay Baer of Convince and Convert, Lee Odden of TopRank Online Marketing, Mark Schaefer of Shaefer Marketing Solutions, Pam Didner of Global Content Marketing, Susan Emerick of Brands Rising and Tom Webster of Edison Research.