Project'Or RIA is project management software that tries to to gather in a single tool all functionality needed to organize your projects. It focuses on IT projects, but is also compatible with all kinds of other projects. The objective is to keep it simple and easy to use on a day to day basis.
The Amberdms Billing System is a Web application that provides accounting, invoicing, service billing, and time keeping functions. It is designed for small and medium businesses. This program is developer-friendly with a SOAP API, as well as being appropriate for ISPs with service usage billing features.
SamTodo is a simple PHP application that makes managing a todo list as easy as possible. It allows for a prioritized and categorized listing of information ensuring that you won't forget important tasks again. The source code is easy to understand and the entire program is stylized using CSS (so it can be easily adapted to your needs). It only requires access to a Web server that supports MySQL and PHP.
RDVz is a Web application for setting conveniences for meeting appointments between several persons. RDVz uses a poll system: each invited user votes for one of the dates suggested by the meeting organizer. The poll organizer chooses possible dates, creates the poll, and sends the poll's URL to the participants. The organizer can export poll results in a CSV file. Anonymous access, MySQL, LDAP, and SSO (CAS) authentication methods are available.
Infonomix is a project management system similar to Trac, written in PHP and using XSLT. It is designed more for professional services tasks, like graphic design and Web development. It also keeps track of time using a time clock system, and time can be assigned to tasks, projects, or clients.
The Meeting Request Scheduling and Booking System (MRSBS) allows a person to schedule a meeting with people who are not on the same (or any) calendaring system. The meeting host (or the host's delegate) prepares an invitation, specifying required and optional attendees, information about the meeting topic and duration, potential time slots, and potential locations. The invitation is sent to the invitees via email, and the invitees reply via a Web page with their availability. Once all replies have been received, MRSBS selects the best available time. Invitees are then notified with an RFC 2445 compliant iCalendar notification.