Motivation 

http://www.writeattitude.net/index.php

http://www.themotivatedwriter.com/index.html

http://www.nanowrimo.org/

http://www.routinesforwriters.com/

Agents who have great blogs (still building my list- more to come!)

http://pubrants.blogspot.com/   (Kristin Nelson)

http://arcaedia.livejournal.com/ (Jennifer Jackson)

http://knightagency.blogspot.com/

Writing skills, getting an agent, general writing information

http://hollylisle.com/fm/