Audio

Packs of sound effects (free downloadable resource) :

Baby_sound_effects
Button_rollover_sound_effects
Drones_textures_sound_effects
Household_sound_effects
Monster_sound_effects
Navigation_interface_tones
Variety1_sound_effects
Variety2_sound_effects

Audio websites :

SoundScalpel : SoundScalpel is a safe, secure and trusted royalty free music and sound effects website offering a wide selection of production music / stock music and sound effects downloads.

LoopSound : Professional royalty free music library ready to download instantly for any production with easy licensing for public broadcast and on-line use.

Cool Archive : Free sounds, clip art, fonts, icons, bullets, bars, arrows...