We try not to toot our own very often but there are certain exceptions which must be made, and this is one of them. Our own Judy Woodruff receives a lifetime achievement award Tuesday — along with NPR’s Deborah…

Twitter may be one of the world's fastest-growing social media tools, but the question of how the 140-character micro-blogging site could turn tweets into dollar signs has gone unanswered since its launch in 2006. Until now. The San Francisco-based company…