There are a number of excellent articles, links and other information of interest to Valjoux movement owners, collectors and enthusiasts.  These are listed below.

The Valjoux 7750 Chronograph by Walt Odets
This 2-part article on the Valjoux 7750 is an informative article on the nuts and bolts of the Valjoux 7750, written by TimeZone.com authority Walt Odets.

 http://www.timezone.com/library/horologium/horologium631672313433425752

The Valjoux Engine by Peter Braun and Andreas Mook
Another, yet different, article on the Valjoux 7750, including its many variations, fully illustrated with examples from many Swiss watch companies.

http://home.xnet.com/~cmaddox/valjoux_7750_engine.html#The_Valjoux_Engine

Chuck Maddox's Watch Blog on the Valjoux 72 Chrono Family
Interesting blog on the Valjoux 72 series of movements, by Chuck Maddox. Great photos of watches from the 1960s and 1970s.

http://chuckmaddoxwatch.blogspot.com/2005/12/valjoux-72-chrono-family-discussion.html

When a 7750 Ain't A 7750 Any Longer posted by G.J. Buhyoff on TimeZone.com
Brief article followed by a blog on the transformation of a base 7750 to a "house movement."

http://www.timezone.com/library/comarticles/comarticles631681571896618891

On The Dash
Devoted to Heuer chronograph wrist watches, dash clocks and timers powered by Valjoux movements. Very well done and worth a visit.

http://www.onthedash.com/movements.shtml

Alliance Horlogere
This website has a fascinating video showning the reassembly of a Valjoux 7750, and lists several Valjoux service manuals as well.  To see the video, click on the link below, the click on Under The Loupe, scroll down to Calibres and click on Chronographs, and under Calibres you will see a link for ETA 7750. Click on that and the video will start.  Very worth while.  

http://www.alliancehorlogere.com/en/index.php?title=Main_Page

Chronocentric New!
This excellent website is devoted to all things related to chronograph watches. It has been online for nearly ten years and is a source of much valuable information, with forums, watch reviews, an Omega section and more.

http://www.chronocentric.com/

Other Websites of Related Interest

About the Lemania Watch Company
A brief history of another great name in Swiss watch movement manufacture.  Lemania was first acquired by the Swatch Group to primarily supply movements for Brequet. Today it has been entirely absorbed into Brequet and the Lemania name has sadly vanished.

http://www.lemania15.com/aboutlemania.html

Unitas Reference Site
I launched this website several years ago to document UNITAS movements and it served as a model for the Valjoux Reference Site.

http://www.unitas.netfirms.com/