A universal instant messaging (IM) program
See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
MSN compatible messenger application
A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart. Perfect for keeping in touch with those friends who have not yet seen the light. Works on linux
An open implementation of the SS7 core protocols, MTP, SCCP, ISUP, and TCAP.
Bot Sentry is a Pidgin (libpurple) plugin to prevent Instant Message (IM) spam. It allows you to ignore IMs unless the sender is in your Buddy List, the sender is in your Allow List, or the sender correctly answers a question you have predefined.
IRC Daemon based on UnrealIRCd with added features and enhancements, including features from Bahamut, UltimateIRCd, Hybrid and other IRCd software.
A fork of pidgin which aims to provide minor features that have not been addressed by the pidgin development team (including manual textbox resizing). See funpidgin.sf.net for details.
MrPostman is an email gateway from local POP clients like Microsoft Outlook, Mozilla's mail client etc. to different web mail services like Yahoo and Hotmail. It is being designed for extensibility so is easy to add more web mail services to it.
CryptoPy is a pure python implmentation of cryptographic algorithms and applications. The algorithms are developed for readability more than speed. The collection now includes IEEE 802.11i specific algorithms that generated the test vectors for 802.11i.
Universal Transport For Sip, Including UDP,TCP,HTTP Proxy Tunnelling,Sock4/5,STUN,UPNP,TURN, also a extension in sip for net tunnelling establish.
My Community Portal is a all in one internet portal that offers, forum, groups, chat, your own e-mail, search engine, internet directory, your own home page, poll's, dating services, buddy list, MP3 and file sharing, and many more.
This plugin makes Pidgin able to connect to WPN (WinMX Peer Network) chats through WPNP (WinMX Peer Network Protocol). Written in C, for all the platforms supported by Pidgin.
OpenQ is a QQ-liked protocol plugin for Pidgin (Formerly known as Gaim). (Note: The OpenQ has been merged into Pidgin source) | OpenQ 作为 Pidgin（曾经的 Gaim）的插件，实现了类似于 QQ 的协议。（提示：OpenQ 已经导入 Pidgin）
Pythońol is an all-in-one program to help English speakers learn Spanish. Features include: Pronunciation, verb conjugation, dictionary (70,000+ words), thesaurus, quizzes, full-text translation, idioms, a verb browser, and a large reference section.
Webmail project, based on the original UebiMiau, that uses the newer smarty template engine, better optimized, have export / import of addressbook, most things rewritten, many new features.
An edonkey based server that offers new functionalities for eMule clients. <p>Un server s'appuyant sur le protocole edonkey offrant de nouvelles fonctionnalites pour les clients eMule.</p>
BMForum is a open source forum based on PHP & MySQL. BMForum is a powerful forum with AJAX,Tags,RSS and more Web 2.0 Technology.
IRCu2.10.11 with some modifications and new cool feutures + Services
Eclipse plugin that allows you to post questions to the online community in real-time. People's questions are 'streamed' into your view and you can see answers or answer them yourself. Uses Java with servlets and XML
This is a program to automate conversion of file formats by acting as an interface to command line utilities specifiedin a configuration file. Currently it is cgi based, and allows users to browse through their file systems. I am also writing a Linux kern
Exclaim! allows you to share anything with anyone.
Exclaim! is an open source, multi-platform, HTML coded application that allows you to share anything within social media networks.
An Internet and LAN multiplayer server for the Flightgear Project. This will provide services to link pilots together so they can see each other when flying. Voice Air Traffic Control will likely be added later.
Gaim RECO - REplace COdepage of incoming and outgoing messages for Gaim IM client
Multiple account (or label) Gmail notifier (without storing passwords)
Gmail Notifier (restartless) is an open-source project that notify you about incoming emails from all your Google Mail accounts and labels. Features: 1. No requirement to enter your credentials. 2. Multiple account support 3. Multiple label support 4. Low bandwidth usage by using RSS technology 5. Mark as read, report span, trash or archive massages right from toolbar
Hotline compatible server/client/tracker for unix. Protocol documentation and extensions.
IRClib++ is a irc-library written in C++. The main goal of the project is to keep it simple but fast and useful.