" Instant Messanging "

Gadu-Gadu (Polish for "chit-chat"; commonly known as GG or gg) is a Polish instant messaging client using its own protocol. Gadu-Gadu is the most popular IM service in Poland, with over 7.8 million registered accounts and approximately 6.5 million users online daily.The official client provides over 150 emoticons, allows grouping contacts, sending SMS and integrates with other services ran by the same company: a virtual Internet dial-up, a social networking site MojaGeneracja.pl and an internet radio Open.fm. Because of this, many users consider newer versions bloatware, so the older versions are still common.
Reaction: Gadu-Gadu allows its users to add personal information to a "public directory", available publicly to search.Many unofficial plugins have been created to expand its capabilities.Because of this, many users consider newer versions bloatware, so the older versions are still common.



Jabber Instant Messaging and Presence technology. Built to be extensible, the protocol has accumulated features over time such as Voice over IP and file transfer signaling.Unlike most instant messaging protocols, XMPP is an open standard. Like e-mail, it is an open system where anyone who has a domain name and a suitable Internet connection can run his own Jabber server and talk to users on other servers. The standard server implementations and many clients are also free and open source software.
Reaction: Unlike most instant messaging protocols, is an open standard. Like e-mail, it is an open system where anyone who has a domain name and a suitable Internet connection can run his own Jabber server and talk to users on other servers. The standard server implementations and many clients are also free and open source software.

Meebo is an Ajax-based in-browser instant messaging program which supports multiple IM services, including Yahoo! Messenger, .NET Messenger Service, Google Talk, AIM, ICQ, MySpaceIM, Facebook Chat and Jabber; it is based on the free and open source library libpurple created by the software developers of Pidgin.Meebo was founded in September 2005 by Sandy Jen, Seth Sternberg and Elaine Wherry, and is based in Mountain View, California.

Reaction: Users of Meebo can connect to chat rooms or host their own for which multiple friends can join and chat. Meebo Rooms also grants a degree of control to the user with invite and ban authority. Classic Meebo was updated to reflect the release prior to Meebo Rooms to allow users with outdated browsers to continue to use meebo.