Apple II
Utilities, ActiveGS, Apple II Oasis, Apple ][ Emulator Resources Guide, Apple ][ Mania, AppleCE, Applelet, AppleUni, AppleWin, AppleWin 2.0 Project, Bernie ][ The Rescue
Macintosh
Basilisk II, Executor, Fusion, SoftMac, vMac, E-Maculation, Emulate the Mac, Emulation.Home.Pages.de, Macintosh Emulation Station, Macintosh Emulation: First Impressions, Macintroid, SysOpt: Turn Your PC Into a Mac?!, The Macintosh Emulation Forum
GNUton
The GNUton project is a re-implementation of the (defunct) Apple Newton platform. It consists of the virtual machine, storage architecture and templates for GUI and general OS features. It aims to support execution of existing pure NewtonScript packages.