See the page of text messaging abbreviations in the Quick Reference section of Webopedia..

A Lack of SIMPLE Pleasures
This 2002 article from InstantMessagingPlanet examines some of the obstacles SIMPLE has been up against in trying to become a standard.

Choosing an Instant Messaging System
A series of articles covering the fundamentals of enterprise instant messaging and what you need to know as an IT decision-maker.

Instant Messaging Can Usher in Instant Problems
IT managers are being warned that IM is fast becoming a gateway for more attacks on the corporate network.

Instant Messaging Planet
Complete coverage of the business opportunities emerging from IM including case studies, security updates, and infrastructure issues.

Open Networks Today
Networking news moves at a fast pace, and Open Networks Today lets you keep up with it. Open Networks Today offers its readers the ability to control how news is presented through customizing content filters, discussions, and news feed links.