What paper makes you swoon over a journal?

Day 230/365

Today I’ve got something a bit different, I’ve got a survey for you!  It’s about page papers in journals.  I want to know what papers makes you swoon when you pick up a new journal, open it and discover the perfect pages inside!  Tell me about it in a short (5 minutes or less) survey here.  The survey closes on June 1, 2015.