Based on the Marvel Previews #104, April for June 2012, I'd say you need to pre-order the following books in order to keep up with Spider-Man.
Core Titles
Amazing Spider-Man #687
Amazing Spider-Man #687, ASM in motion variant
Amazing Spider-Man #688
Amazing Spider-Man #688, Lizard variant cover
Amazing Spider-Man: The Movie #1
Amazing Spider-Man: The Movie #2
Avenging Spider-Man #8
Marvel Universe Ultimate Spider-Man #3
Marvel Universe Ultimate Spider-Man: Great Power Digest TPB
Scarlet Spider #6
Spider-Men #1
Spider-Men #1, comic shop variant
Spider-Men #1, Pichelli variant
Spider-Men #1, Ramos variant
Spider-Men #2
Spider-Men #2, Martin variant
Spider-Men #2, Pichelli variant
Ultimate Spider-Man #11
Guest Apps
Age Of Apocalypse #4, ASM in motion variant
Avengers Academy #31, ASM in motion variant
Avengers Assemble #4, ASM in motion variant
Captain America #13, ASM in motion variant
Daredevil #14, ASM 50th anniversary variant
Daredevil #14, ASM in motion variant
Dark Avengers #175, ASM in motion variant
Fantastic Four #607, ASM in motion variant
FF #19, ASM in motion variant
Incredible Hulk #9, ASM in motion variant
Journey Into Mystery #639, ASM in motion variant
New Mutants #44, ASM in motion variant
Secret Avengers #28, ASM in motion variant
Winter Soldier #6, ASM in motion variant
Wolverine #308, ASM in motion variant
Wolverine And The X-Men #12
X-Factor #237, ASM in motion variant
X-Men #30, ASM in motion variant
X-Men Legacy #268, ASM in motion variant
Spin-Offs
Venom #19
Venom #19, ASM in motion variant
Reprints
Amazing Spider-Man: The Movie TPB
Avenging Spider-Man: My Friends Can Beat Up Your Friends Premiere HC
Carnage U.S.A. HC
Daredevil By Mark Waid Vol. 2 Premiere HC
Essential Spider-Man Vol. 11 TPB
Marvel Masterworks: Iron Fist Vol. 2 HC
Marvel Masterworks: Iron Fist Vol. 2 HC, variant edition
Marvel Universe Avengers: Spider-Man And The Avengers Digest TPB
Marvel Universe Ultimate Spider-Man Comic Reader #1
Marvel Universe Ultimate Spider-Man Comic Reader #2
Spider-Man: Revenge Of The Sinister Six Premiere HC
Spider-Man: Revenge Of The Sinister Six Premiere HC, variant edition
Spider-Man: Spider-Hunt TPB
Spider-Man: Trouble On The Horizon HC
Ultimate Comics Spider-Man By Brian Michael Bendis Vol. 2 Premiere HC