On both your Slated dashboard and your profile page you will see a box on the right hand side of the page that displays your "Connections." Appearing here are all of the people and projects you are tracking (“Tracking”) and all of the people who are tracking you (“Trackers”). Clicking on any of the faces of your trackers will take you to their profile page where you can message them (depending on your relationship and their messaging settings) or learn more about them.

To receive an email notification when someone new starts tracking you, go to your Settings page Email Communications tab and check the box for "Updates from profiles I track".