I've been using acronyms that are befuddling people. Here's a glossary. If there are others (or references you just can't figure out) let me know.
MSM - Main Stream Media. Not sure of the origin. Hit my consciousness sometime in the first Bush II term.
PB 0.5/1.0/2.0 - Progressive Blogosphere [version number]. The first upsurge of progressive blogs is the 1.0, now downgraded to 0.5, version. Their capitulation to the MSM has led to the question WKJM? And also to attempts to found PB 2.0. See Corrente for discussions on getting 2.0 up and running.
SCLM - So Called Liberal Media. Origin is from Eric Alterman of Altercation. See his books on the topic.
WKJM - Who (whoever) Kidnapped Josh Marshall. Origin is the Incomparable Bob Somerby of The Daily Howler who was trying to figure out why the previous thoughtful and rational Josh Marshall, founder of Talking Points Memo, had turned into a pewling, lying shill.
Update - Corrente has an extensive glossary here. Reading it over, I realize that my vocabulary is in need of expansion.