Hatari
Hatari is an Atari ST emulator for Linux and other systems that are supported by the SDL library.
https://hatari.sourceforge.net/
Steem Engine
The Steem Engine is a free Atari STE emulator made with ease of use in mind.
http://steem.atari.st/
Mini vMac - a miniature Macintosh emulator
Computers, Emulators, Apple, Macintosh - Mini vMac. A spin off of the vMac project that aims to create a simplified version of the Mac Plus emulator.
https://minivmac.sourceforge.net/
Macintroid
Computers, Emulators, Apple, Macintosh - Macintroid. Covers freeware/open source emulators and applications, as well as information pertaining to their use.
https://macintroid.tripod.com/
Mac Emulation [E-Maculation]
(site updated June 1, 2009) Welcome E-Maculation is a wiki dedicated to emulation of the Macintosh computer in Windows, Linux and Mac OS X. This is possible through the use of emulators such as SheepShaver, Basilisk II, Mini vMac and PearPC. This wiki is semi-closed: if you want to edit it, you need to register and then send me an e-mail to ask for permission.
https://www.emaculation.com/
Lisa Emulator Project
Computers, Emulators, Apple, Lisa - Lisa Emulator Project. Apple Lisa emulator for XWindows.
https://lisa.sunder.net/
AppleCommander
Computers, Emulators, Apple, Apple II - AppleCommander. An open source disk image utility written in Java.
https://applecommander.sourceforge.net/
piazzaGS
Computers, Emulators, Apple, Apple II - casaGS. Site hosting the Apple IIgs emulators XGS-DOS for MS-DOS and KEGS-OSX for Mac OS X.
https://www.casags.net/