Extensible Messaging and Presence Protocol (XMPP): Core 可扩展消息出席协议：核心 RFC 3920 摘要：
Network Working Group M. Day Request for Comments: 2779 Lotus Category: Informational S. Aggarwal
Network Working Group M. Day Request for Comments: 2778 Lotus Category: Informational J. Rosenberg
RFC2778 出席与即时消息模型（Presence and instant messaging） 摘要： 本文档定义了出席与即时消息系统的一个抽象模型。定义了所涉及的各种实体，术
Network Working Group N. Greene Request for Comments: 2805 Nortel Networks Category: Informational
Network Working Group W. Wimer Request for Comments: 1532 Carnegie Mellon University Updates: 951
Network Working Group W. Wimer Request for Comments: 1542 Carnegie Mellon University Updates: 951
RFC: 817 MODULARITY AND EFFICIENCY IN PROTOCOL IMPLEMENTATION David D. Clark MIT Laboratory for
About the book: Core J2ME is a complete guide to developing applications for 2 Micro Edition, the
Network Working Group M. Rose Request For Comments: 3080 Invisible Worlds, Inc. Category: Standard