Newsgroups, chat rooms, and e-mail have spawned a rich set of acronyms and initialisms for common phrases. A few of the more common ones are listed below.

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

Text Messaging Abbreviations
This Quick Reference Guide provides an overview and examples of text messaging abbreviations and smilies.

Webopedia Quick Reference: Online Auction Abbreviations
The following list of abbreviations are widely used Internet abbreviations and acronyms found on eBay and other online marketplaces.