hmm, from the list of you guys above, here's the info I can provide..
Georgetown: mail with info about secondary, came last week maybe?
George Wash: they emailed me in the week of Jul 15th, maybe you should consider calling their office?
Boston U: mail with info on secondary, came last week
Stanford: its good if you DONT hear from them cuz that means you haven't been rejected 😛 I think they're just doing tons and tons of rejections pre-secondary and they'll send out their secondary eventually
Northwestern: they have an online one, but three decently long essay questions, took a while to fill out. I think the info came by email, but I don't know if they screen for secondary
good luck all 🙂
-Cantal