Blogging decision...

So, I'm starting up my own business with a good friend and fellow life coach.
I'm wondering if I should continue to blog here, or if it would be better if I started a new blog that was linked to our business website...
And if I started a new blog, do I stay with Blogger or set up something else...

I've been thinking of things I want to blog about and I keep putting it off because I want to get this right. Gah.