Emergence Marketing is a great blog that I just discovered today while surfing. I am really impressed with the number of topics it covers - in a short, succinct manner.
I picked up lots of tidbits of wisdom here, like how the concept of 1 to 1 marketing is changing to a 1 to many concept, and how too much viral marketing can actually degrade the credibility of your product.
I definitely recommend that all my readers check it out, and dig through some of the archives for some really intriguing reading.