1) Email
2) Phone call
I was super excited about the phone call–it was from one of my top choice schools. It was the last day of the semester, I had just finished my last final exam, and I was getting ready to go visit my boyfriend. I had actually been sitting on the School-specific forum for this school earlier in the day, speculating about when the first acceptances would come out. Around lunch, phone started to ring, saw area code/city, freaked out, dropped phone, hastily picked it up and began pacing, got the good news, grinned from ear to ear, said thank you about a million times. I 100% prefer phone call–it's so personal, and great to hear the person telling you the news share your excitement. (I guess it wouldn't be so great if the call was from a school you weren't super excited about, though.)