This year we also rank (alphabetically by surname) @InfoEcon & @g2parker, @rachelbotsman, @Tiffani_Bova, @erikbryn & @amcafee, @subirchowdhury, @dorieclark, @SusanDavid_PhD, @francescagino, and @heidigrantphd among the Top 50 Thinkers. #IdeasWithPurpose