Software-Karte

Gyach is a GTK+-based Yahoo! Chat client which can use your existing Yahoo! logins for chatting in Yahoo! Chat. It supports colors, emotes/aliases, PMs, set status, remote user status display, ignore lists (local, non-Yahoo! based), a regex list of triggers to cause users to be automatically ignored, command-line recall via arrow keys, and tab completion of usernames.

The EnergyMech is an advanced IRC bot. It has many features including a DCC party line, powerful user list handling, a telnet console, bot linking, and more.

blueflops is a two-floppy Linux distribution with
a graphical Web browser (links) and an IRC client
(rhapsody). The kernel has most of the Ethernet
drivers compiled in as modules (including the
PCMCIA ones) and PPP support (for dialup
connections). The browser is linked with OpenSSL.
The scripts are all accessible by a setup script
and have a nice dialog frontend.

PunJab is an BOSH connection manager. It is an HTTP server that allows stateless applications to access a stateful XMPP server.

Alvaro's Messenger is a Tcl/Tk client for MSN
Messenger. Its features include multi-language
support, smileys, docking support for KDE 3 and
GNOME 2 (FreeDesktop compatibility), logging,
profiles support, email notification, customizable
sounds, group management, file transfers with NAT
support, and proxy support. Some special features
include the possibility of knowing who has deleted
you from his/her list, connecting "silently"
(appearing invisible), and so on.

ickle is an ICQ2000 client using the GTK-- graphical toolkit. It aims to bring all the useful features of ICQ2000 to non-Windows users. It supports message/URL/SMS sending/receiving (including SMS delivery reports), status changes, reading away messages, and fetching advanced user info from a server. History browsing and lots of configurability in Settings are available.

Mumble is low-latency, high quality voice chat
software primarily intended for use while gaming.
It should compile and run the client out of the
box on at least Ubuntu 6.06, and quite likely
other distributions as well.

GnomeICU is a Gnome application which allows one to communicate with other GnomeICU users or others who use ICQ (Windows, Java, Mac, etc). With GnomeICU, one can send and receive messages, change online modes, send and receive URLs, and much more.

PTlink IRC Services provides channel/nick
registration services for IRC networks. Specially
developed for the PTlink IRC Server, it uses
modules and includes features like channel roles, nick groups for privilege management, and a Web interface for users. The data backend is a MySQL database.

IMIRC is an AOL Instant Messenger to IRC gateway. It connects to an IRC network as an IRC server, so it requires a local ircd to run. IMIRC creates nicknames for AIM users as they sign on, and converts HTML codes, which are used by AIM for formatting, to IRC's control code equivalents. Please note that you must either have your own working IRC server or you must find someone willing to let you link to theirs.

libyahoo2 is a single-threaded, asynchronous
Yahoo! Messenger library currently used in
several messenger clients, including ayttm, eb-lite, fire, centericq, miranda, kyim, freehoo, and more. Communication is by means of requests and callbacks.

mbot is an IRC bot coded in C++. Its main advantage is that several bots can run simultaneously in the same process, making it ideal for shells where the background processes are limited, but not the connections. It also features IPv6 support, TCL scripting partially compatible with eggdrop, and lots of modules with the most commonly needed functions.