Sherpath Groupware is a Web-based (HTML and a few JavaScript), high-performance groupware package. It features email, schedules, contacts, a file explorer, email rules, notes, tasks, bookmarks, and fax and SMS support. It requires Apache, PHP4 and MySQL. This was a commercial project, but it has been under the GPL by its authors.
This Amazon-style review script allows users to rank a product or item on a scale of 1-5 stars and make comments related to the product for other users to read. Email notification will allow the administrator to approve comments before being added to the website. Admin panel allows the following: Approve a Review before it is listed, Delete a Review, Delete all Unapproved Reviews and Add Item for Review. Can be used to rate books, videos, music, websites. Fast mysql backend. One template file controls the entire site/script layout.
Ooo Free Calendar A simple calendar for your website
This is a very simple, but yet nicely formatted free calendar that will highlight the day of the week and display the month, its easy to copy and paste into your web site code. Works well for any web site that users are frequently thinking about events within the month. This is a very simple codeO(N), and requires no mysql or flat file implementation.
lostBook is a simple and customizable guestbook that uses flat files. Includes the admin area to delete entries, a nice looking layout, customizable colors and fonts, and more. 1.2 update: bug fixes, better looking interface.
This script uses a file stored in a folder on your server to log information about sites sending you traffic such as the visitors IP, the URL they came from, their ISP, and more. Then you can simply include a file on your .php page and list the last X amount of referers. Only 3 total files used. A live demo can be seen at http://jakez.net