Here's the listing from the iPhone app for the week of March 21, with some possible links to the pages for the topics (some of them have more than one).
How I Met Your Mother (TV)
Mildred Pierce (TV)
GarageBand iPad App (Apps & Games)
Win Win (Movies)
So Much Pretty, by Cara Hoffman (Books)
"Don't You (Forget About Me)" by David Cook (Music)
It Gets Better, by Dan Savage and Terry Miller (Books)
Bridge Over Troubled Waters 40th anniversary CD/DVD (Music)
"Caffeinated Consciousness" by TV on the Radio (Music)
Good luck, and if you can get any of them to trigger the next level of the sticker for you then post it here!