I was introduced to Adam Grant (not in person, just though his amazing book, Give and Take:Why Helping Others Drives Our Success) a year or so ago in an MBA class. His book captivated me, showing through research and real life examples many intuitive things I have felt but had no idea how to put into words. Not only does he articulate these deep seeded intuitions, he always backs it up with research and data.
His research is work spreading. Check it out!