<A target="_blank" href="http://www.eweek.com/c/a/Messaging-and-Collaboration/Microsofts-New-Hotmail-Features-Target-Graymail-291151/?kc=rss&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+RSS%2Ftech+%28eWEEK+Technology+News%29">Microsoft defines 'graymail' as newsletters, product offers, and updates from social sites</A>. They're adding a filter to Hotmail to help clean up your inbox.