Anyone who's seen me speak knows that my rule of thumb when it comes to staying in touch with employers is that you stay in touch three times per year. I'm not in school anymore, but I still follow this concept of staying in touch three times per year -- fall, spring and summer. You want to get in the habit of building below-the-surface relationships. Find out what drives people. Did your boss just get married? Is your boss going to Hawaii over the summer? Is your boss obsessed with his/her dog?