Here is the complete reading order for the "Ends of The Earth" story arc in Amazing Spider-Man
01 Amazing Spider-Man #682
02 Amazing Spider-Man #683
03 Amazing Spider-Man #684
04 Amazing Spider-Man #685
05 Amazing Spider-Man: Ends of The Earth Special #1
06 Amazing Spider-Man #686
07 Amazing Spider-Man #687
08 Avenging Spider-Man #8