In roughly 2008, DC started cross-comic stories amongst the Superman family titles. To help readers keep track of the order of these stories, DC put a shield with a number in it on the cover. This is similar to what they did back in the 90's with triangle numbers when they had Superman stories going on that crossed all of the Superman titles of the time.
I'm trying to catch up on my comic book reading, and so I'm reading comics from 2009-2011, and I need a reference list of how the Superman titles are ordered so I can read them in order. Can someone point me to such a list?