ePSXe
Freeware emulator for Linux/i386 and Windows.

Playstation Video
Programs that let's you view fmv sequences.

AdriPSX
An open source emulator for Windows.

PCSX
An open source emulator for Dreamcast, Linux, and Windows.

Game Revolution
Playstation emulator page. Free downloads. PC and Mac supported.

Sope
An open source emulator for Linux/Unix systems.

The Register: PlayStation emulator developer Bleem folds
Bleem, the company behind the PC and Dreamcast-based PlayStation emulator of the same name, has closed down.

PSXeven
A freeware emulator for Windows.

OmniJoy
A pad plugin for Linux PSEmu and compatible emulators.

NeoPSX
An open source emulator in developement for Windows.

FPSE
"Final PlayStation Emulator". Freeware emulator for Windows.

Console Gaming World - Bleem!
Includes information on the shareware PSX emulator Bleem! and downloads of its updates and patches.

Zophar's Domain: Sony Playstation Emulators
Includes information, links, and downloads of 13 different Playstation emulators.

Hansi's Mac-PSX Site
Includes information and downloads of two Mac Playstation emulators - Flarestorm and CVGS.

FPSEce
Free Playstation Emulator for your Pocket PC

PS2 Emulator
Downloads for VGS, PCX Playstation emulators and a few work-in progress ps2 emulators.