123 Live Help is a Web-based support software for businesses. It shows visitors to your Web site that a live agent is just a click away and enables operators to chat in real time with them. There are text and video chat options. It is secure, fast, flexible, customizable, and cost-effective. There is a full-featured administrative panel for operators and administrators, allowing them to automatically detect customers' details, track their footprints, transfer chats, follow the visitor's Web browsing, check spelling, get canned messages, and more. Administrators also can monitor all chat sessions and get statistics on the traffic sources of visitors and performance of operators.
libircclient is a small but powerful library that implements the client-server IRC protocol. It is designed to be small, fast, portable, and compatible with RFC standards and most IRC clients. It includes multi-threading support, sync and async interfaces, CTCP and DCC support, and color support. Good documentation and examples are available.
ejabberd is a multi-platform, scalable, distributed, and fault-tolerant Jabber/XMPP server. It includes Jabber services like Multi-User Chat, IRC transport, HTTP-Bind, Publish-Subscribe and PEP. It supports virtual hosting, connection to transports (gateways) to other networks, and connection to other Jabber servers. Other supported features are Web and command-line administration, encryption support (SSL and TLS), several authentication methods (embedded, external script, LDAP, PAM, and ODBC), varied storage methods (embedded, ODBC, PostgreSQL, MySQL, MSSQL), Jabber user directory, and translations in more than 20 languages.
dxirc is a easy-to-use yet capable cross-platform IRC client. Among its notable features are flexible configuration, a fully customizable look independent of system-wide settings, multiple server support with optional automated joining of selected channels, and the ability to connect via SSL.
pidgin privacy please is a pidgin plugin to stop spammers from annoying you. You can block messages from certain users, block messages from people who are not on your contact list, and suppress repeated authorization requests. Optionally, senders of blocked messages can be notified with an auto-reply.