In case you were wondering, like me, where the name Bing came from here is the reason.
http://www.microsoft.com/video/en/us/player/embed/31bd7b71-d5c2-4d71-b908-95df720cfd68
A New Product Deserves A New BrandOur research around Bing showed that it connoted “fast,” “easy,” and “delight”—all qualities that mapped very naturally to the search experience. It was also seen as the friendliest and most approachable name option.