Pabs' CHM specification page is the most complete unofficial specification I've seen.

Interesting general CHM format information can be found at Matthew Russoto's CHM page.

UPDATE: Pabs has created an IRC channel for talk about CHM and other help formats.


xCHM has been added to the GNU directory.

Here's the Freshmeat xCHM project page.

Yet another satisfied customer :-).

Apparently, xCHM is the best Mac OS X choice for some people.

The Mac OS X binary of xCHM is listed and talked about here and here.

Chmtools.com lists xCHM.

"The Creative Tech Writer"'s tools archive page talks about xCHM. 

Helpware links xCHM.

The 'OSX Killer Apps' ;-) page lists xCHM.

Ted Leung talks about installing xCHM on Mac OS X.

The 'Help authoring tools and output for Linux applications' article on the 'Technical Editors' Eyrie' site mentions xCHM.

Julius Huang compiled xCHM on Mac OS X Tiger 10.4.3 and provides a nice screenshot here.


Get acquainted with Kurt Vonnegut.

Read Daniel Quinn's Ishmael.

Jamie Zawinski is a very interesting character. I'm thinking about starting to sell the solution to his front-page puzzle.

Make a point in visiting Noam Chomsky's site.

Richard Stallman's website is different.