The Flash combos by Dream King, The Shadowloo's Ares combos and resets, extensive Aquaman guide and multi-character combos - Injustice roundup
@ #1 I think you mean Flash combos always look "Flashy" :P (Sorry for the bad pun, too good to resist)

Green Lantern Injustice: Gods Among Us Moves, Combos, Strategy Guide
Maybe MB is "Multi-Button"? I could be wrong, but it's worth a guess :P

EventHubs launches iOS app, available for free in iTunes store
This is an AWESOME start. A few requests for the future. 1. When I open the articles, they are not correctly sized for a iPhone. I have to zoom out, not a huge hassle, but It would be nice aesthetically. 2. Please add access to the guides for specific games and fight tracker. Thanks!