I love the idea of participating in an online education community. What better way to learn new things but through colleagues and people in your same profession. There is always a new way to teach something, and participating in a PLN you can learn so many different ways to do it. Most educators are continuously learning and doing new things-atleast the good ones are. I think what stands out to me as being very important when commenting on other blogs, is the simplicity of it. I understand the reason why some of us require others to sign in before commenting, but when wanting to comment quickly, this is a hassle. It my keep people from commenting just because they have to register, enter info, etc. I think being humble in your posts too is important. Nobody is perfect and many people tend to shy away when a post or blog comes across as "knowing it all", or sounding unrealistic. People like to know that they are in the same boat as others..atleast I do.
I follow many different blogs, here are some: