julitecCONTACT organizes your contacts and lets you write letters and e-mails to groups of them. It is an easy and flexible solution for managing relationships with your customers. It features address and contact management, import and export wizards, history, document management, and document creation.
LogBot is an IRC bot that creates Web-based logs in XHTML format. It uses the PircBot API to connect to an IRC server and is useful for disseminating online conferences and discussions of interest groups to those who do not use IRC. mIRC-style coloring is used and URLs are hyperlinked.
RakNet is a networking API that is a wrapper for reliable UDP and higher level functionality on Windows, Linux, and Unix. It allows any application to communicate with other applications on the same computer, over a LAN, or over the internet. Although it could be used for any networked application, it was developed specifically for rapid development of online games and the addition of multiplayer to single player games.