APBook is a free PHP/MySQL guestbook script.
It has many features such as templates, flood protection, bad words filter, IP logging, e-mail notification for admin and posters, APBcode, preview post, Admin-Center and many more.
Currently APBook is only available in German, but translations into other languages will follow soon.
Chemoventory is a web based software for chemical inventory. It comes in two version: Lite and Standard version. Lite version is free but has limited functionalities. Lite version is ideal for lab/institute/company with single lab or all chemicals in one building and less than 10 chemists and or chemical users and for all those who want enjoy the free version. If more than 10 chemical users and/ or more than one location of chemicals and/ or if you want to manage chemicals, users and want to add extra functionality, we recommend Standard version. All PHP codes are pre-compiled using zend accelarator
My Very Simple News System is a collection of PHP & MySQL scripts. After install, you can use the web-based control panel to enter news articles and have them appear on your website. If you are a PHP programmer, the VSNS is a very good base on which you can build a more complicated or a different program.
Version 2.3.3 brings an update feature that automatically compares your version to the latest version on my site and tells you if you need to upgrade. Also, you can pin and unpin articles.
Simple MySQL guestbook is a PHP/MySQL-driven guestbook program. It features an admin interface for updating/deleting entries, and supports multiple guestbooks.
I did this originally for a Bad Movie Website where visitors make comments on movies. This script can be adapted for any use such as comments on News Stories and Art. This script requires PHP and MySQL. About 50 smilies are included or use your own. Another feature of this script is that when more than ten comments, the last ten comments are listed with a link provided to View all postings.
A basic mailing list from which new developers can base their own system. This contains working code to add and remove addresses, as well as the interface for sending mail to every address in the list.