I did a Google blog search on Macmillan mainly to discover whether any of our own websites are running blogs themselves. I couldn't find any (except the brilliant Nascent from Nature) but I'm sure that was my poor search strategy. There must be more.
However, the search did throw up a number of blogs from writers or commentators on Macmillan New Writing which we've discussed here from time to time. For a tiny upstart imprint MNW has certainly made waves, at least in the blogosphere and progressively elsewhere too. I don't think we've cracked the problems associated with publishing new fiction but at least we've found one channel which has the possibility of being commercially sustainable whilst retaining publishing integrity. Here are three blog links worth checking out.
http://macmillannewwriterpart2.blogspot.com/2006/12/some-things-and-quick-thing-about-old.html
http://davidthayer.booksquare.com/archives/2006/11/09/546/
http://girlondemand.blogspot.com/2006/10/in-defense-of-macmillan-and-other.html
One other link caught my eye.

This is the second book from the writing team of Clare ('not just another Bridget Jones') Naylor and Mimi ('youngest director of development for a Hollywood production company') Hare. The book will be published at the beginning of March which gives all of you time to enjoy first The Second Assistant (if you see what I mean). And now I have to declare an interest. They're both friends of mine as well as being a great writing team. We all know that word of mouth is what makes books sell. Do yourself, your friends and the authors a favour - get whispering.