I think you should blog if you've got something important or entertaining to share with your readers and only if you've really got the time to do it.
I wanted to blog, really, but the fact is, I'm primary caregiver to seven beautiful little souls. My children are 12 and under and I'm currently homeschooling the oldest five. And while I do find the time to write, I've missed two appointed blog post times in the past three months. That's unacceptable.
My peers at MGminded do an excellent job of writing informative and often funny posts. Thanks for teaching me and including me in the team, MGminded, but now I need to get out of your way and get back to my kids and my manuscripts.
Perhaps I'll be back with a guest post now and then, but right now, it's 5:27 a.m. and somebody'll be awake and calling for food soon. Besides, there's other voices I keep "hearing", and they need attention too.