E-Maculation (Popularity: )
http://www.emaculation.com/ Macintosh emulation news and commentary. Includes descriptions and specifications of major emulators, introductory articles and interviews with developers.
Macintroid (Popularity: )
http://macintroid.tripod.com Covers freeware/open source emulators and applications, as well as information pertaining to their use.
vMac (Popularity: )
http://www.vmac.org Official page of the Macintosh Plus emulator. Emulates a 68000 based Macintosh and runs up to MacOS 7.5.5.