I mainly develop free software with OCaml (usually under GPL for applications and LGPL for libraries).
Framework for analysis of C programs.
A graph library for OCaml.
An OCaml library for handling date and time.
A small example is the small script used by this website to display the generation date of each page.
An OCaml library providing environments (maps with identifiers as keys).
The tarball also provides too examples of uses:
An sh script which automatically clean temporary files thanks to a configuration file like this one. I use it dayly :-).
Different OCaml encoding of the pure lambda-calculus' auto-application.
I participated sometimes to the ICFP programming contest in the team of the Camls Riders: