OpenSocial
Open Software Foundation
OpenSolaris	OpenSolaris
OpenSound Control	Open Sound Control
Open Source Development Labs	The Linux Foundation
Open Source Development Network
Open Source Initiative
OpenSSH	OpenSSH
OPENSTEP
Open Transaction Management Architecture
OpenType
OpenType フォント	шрифт OpenType
OpenVanilla
OpenView	HP OpenView
OpenVMS	OpenVMS
OpenVPN	OpenVPN
OpenVZ	OpenVZ
OpenZaurus
Opera	Opera
Operation Flashpoint	Operation Flashpoint: Cold War Crisis
Operations Manager オブジェクト	объект MOM
Ophichthidae
Ophichthus gomesii
Ophichthus ramiger
Ophichthus rufus
Ophidiidae
Ophidiiformes
Ophidion barbatum
Ophieleotris aporos
Ophioblennius atlanticus
Ophiocara macrolepidota
Ophiodon elongatus
Ophiogobius ophicephalus
Ophioscion adustus
Ophioscion punctatissimus
Ophisternon aenigmaticum
Ophisurus macrorhynchus
Ophisurus serpens
Ophiuroidea
Ophthalmolycus amberensis
Ophthalmolycus bothriocephalus
Ophthalmolycus spp
Ophthalmotilapia boops
Opisthocentrus dybowskii
Opisthonema bulleri
Opisthonema libertate
Opisthonema medirastre
Opisthonema oglinum
Opisthonema spp
Opisthoproctidae
日本語	русский