The projects listed have been documented over several years to build self-standing Web Browser Kiosks using the LTSP base
Current Packaged Solution for ubuntu/LTSP with the --kiosk option by Oliver Grawert
The [https://wiki.edubuntu.org/HowtoWriteLTSP5Plugins HowtoWriteLTSP5Plugins] page describes the details of the current plugin for an ltsp Firefox kiosk. It is installed using an option that is included with the Gutsy/7.10 distribution:
ltsp-build-client --kiosk
There is a [https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/163278 bug] that needs to be fixed before running this command (on Gutsy as of 1/31/08)
Other LTSP based Implementations
The following implementation documents describe step-by-step methods that were used to build Web kiosks. They might be considered outdated since they use older versions of LTSP and browsers:
[http://www.dnalounge.com/backstage/src/kiosk/ Diskless Linux Kiosks] by Jamie Zawinski
[http://www.edu.helsinki.fi/atk/ltsp_kiosk/ Linux-based WWW-Kiosk using LTSP 3.0] by Matti Lattu
[http://www.meadvillelibrary.org/os/ltsp.html LTSP for Libraries Howto] by Cindy Murdock
Even More Implementations
With a little bit of searching, you can find lots of Kiosk projects.
Jim Massey of JTJ Software keeps the [http://kiosk.mozdev.org/index.html Kiosk Project Site] with a page of [http://kiosk.mozdev.org/index.html Kiosk project links]. Some of the LTSP links above are included.
Gene Wilburn of the Royal Ontario Museum has a widely replicated [http://www.faqs.org/docs/Linux-HOWTO/Kiosk-HOWTO.html Kiosk HOWTO] from 1999
Additional Community Kiosk References
Please feel free to add more links and references