An Internet messaging platform is any system on the Internet that exchanges messages for the purpose of human communications.
Messaging platforms are considered one of few key Internet infrastructure elements. What used to be only referred to as email and IM has evolved into a complex multi-media email, instant messaging, and related fixed and mobile messaging infrastructure.
Jabber is an open and secure technology for instant messaging similar to MSN, ICQ and Google Talk.
Blitzpost is a free Internet Messaging Platform with Email (IMAP, Webmail), Jabber (IM, XMPP) and IRC (Chat) Service.