Gossip, or the office grapevine, is the way everyone in the workplace communicates. You can use gossip to get ahead. The trick is to understand how to leverage gossip to get you the edge.
Because it's underground and doesn't represent the official word of the organization, the grapevine has always been more interesting and therefore more influential than the news or explanations that the company approves. That's even more true in this cynical age when trust in employers is low.