Based on the Marvel Previews #9, April for June 2013, I'd say you need to pre-order the following books in order to keep up with Spider-Man.
Core Titles
Avenging Spider-Man #22
Marvel Universe Ultimate Spider-Man #15
Scarlet Spider #18
Superior Spider-Man #11
Superior Spider-Man #12
Ultimate Spider-Man #24
Guest Apps
Avengers #13
Morbuis: The Living Vampire #6
Savage Wolverine #6
Savage Wolverine #6, blank variant cover
Savage Wolverine #6, variant cover Humberto Ramos
Savage Wolverine #6, variant cover J. Scott Campbell
Savage Wolverine #6, variant cover Wolverine Costume
Savage Wolverine #6, variant cover X-Men 50th Anniversary
Spin-Offs
Alpha: Big Time #5
Venom #36
Venom: The Enemy Within TPB
Reprints
Amazing Spider-Man Omnibus Vol. 1 HC, new printing
Iron Man By Kurt Busiek & Sean Chen Omnibus HC
Superior Spider-Man Team-Up: Superiority Complex TPB
Superior Spider-Man Vol. 1 HC
Superior Spider-Man Vol. 1 HC, variant cover Ditko
Ultimate Comics Spider-Man By Brian Michael Bendis Vol. 4 Premiere HC