Cervisia - A graphical frontend to CVS. (C++) [GNU/Linux, Unix] - http://cervisia.kde.org
Amsn - A MSN Messenger clone for Linux. FAQ, software download, translation resource and Spanish site translation. (Tcl/Tk) [Linux, Windows, Macintosh] - http://www.amsn-project.net/
NetSender - An instant messaging system for Microsoft networks. (Visual Basic) [Windows NT/2000/XP] - http://cvs.uwc.ac.za/Projects/NetSender/NetSender.html
BitlBee - Tunnels instant messaging traffic (including MSN, ICQ, Yahoo, Jabber) to a virtual IRC channel and virtual IRC queries. Documentation, screenshots, bug tracking, and downloads. - http://www.bitlbee.org/
Babylon - A client-server whiteboard/chat program which can be imbedded in WWW documents as an applet, or run as a standalone application. (Java) - http://www.visopsys.org/andy/babylon/
BrowseX - A lightweight web browser for Windows or Linux with support for embedded Tcl scripts. (C, Tcl) [Artistic] - http://browsex.com/
Dailystrips - A utility to download your favorite online comic strips each day. (Perl) - http://dailystrips.sourceforge.net/
CvsGraph - A utility for generation of graphical representation of revisions and branches from a CVS/RCS repository. (C) [GNU/Linux, Unix] - http://www.akhphd.au.dk/~bertho/cvsgraph/
Adns - A DNS resolver library for C and C++ programs, and a collection of useful DNS resolver utilities. (C) [GNU/Linux, Unix] - http://www.chiark.greenend.org.uk/~ian/adns/
Lyntin - An extensible Mud client and framework for the creation of autonomous agents, or bots, as well as mudding in general. (Python) - http://lyntin.sourceforge.net/
Curl and Libcurl - A tool and a library (usable from many languages) for client-side URL transfers, supporting FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP. (C) [GNU/Linux, Unix, Windows, VMS, RISC OS, OS/2] - http://curl.haxx.se/