Resourcer - Lutz Roeder's .NET Resourcer. Great
GUI resource editor for Microsoft .NET resource files. It's the best
alternative if you don't plan to use the console to compile resources.
Accomplishes many functions ResMagik does but with a nicer interface (no
automated work though).
Resource Hacker
- Win32 resource editor with GUI. Can extract resources from PECOFF
binaries.
XN
Resource Editor - Open source Win32 resource editor. Features a
great looking and handy GUI.
PECOFF Specification - Official document that contains a bit
information about embedded resources in PECOFF files.
Miscellaneous Links:
XVI32 - An excellent hexadecimal editor (Freeware).