A few months back, our managing editor, Etya Novik, discussed the almost-ridiculous use of acronyms, particularly in our industry. She mentioned that here at TechNet Magazine, our editors maintain a spreadsheet of every technology-related acronym we've come across in our time editing both TechNet Magazine and MSDN Magazine. A commenter known as "Wonderkid" requested that we share that spreadsheet, which we are happy to do (I've attached the .xls file to this post).
It should be noted that this list is not all-encompassing. It simply includes the various definitions we've come across for acronyms that we've used.
If you have acronyms that you'd like to share, please post them here!