A few blogs that I have found to follow are:
http://www.teachingblogaddict.com - This blog is about teaching in middle school. It links to several other blogs that would be useful.
http://ispeakmath.wordpress.com/ - this blog has several ideas for lessons.
http://croitz.blogspot.com/ - this blog shows different lesson ideas.
I signed up for Diigo to add these links and others so that I can follow them from any computer.
The points that stood out to me the most in the commenting section was way to get others to post comments. A very logical way was to ask for comments. If you are leaving comments make them meaningful.
I believe that sharing my comments publicly is a good idea as it can help others. It is a reflection.
PLNs can be very useful in gathering ideas. It was interesting seeing what others have written.