After agreeing to pay $13 million in a class action lawsuit over its excessive emailing, LinkedIn is emphasizing quality over quantity.<br />LinkedIn announced on the company blog that it's building a new tool, called Air Traffic Controller , designed to serve its users notifications more relevant to what they want to know.<br />Since July, LinkedIn has cut email communications by 50%, but it promises that ATC will reduce that number further still.<br />With ATC, LinkedIn wants to be smarter about the notifications it sends its users across all platforms, including email, mobile and SMS.<br />It will use algorithms to learn how users interact with LinkedIn which will determine what notifications users receive, how frequently they will receive them and where notifications will be sent.