I love this, like really really love it A L O T.
I'd have to say my biggest inspiration comes from fashion (design + photography).
A while ago I made a decision to stop following other wedding/portrait photographers' blogs (with the exception of about 4 of my favorites and a few of my photo-friends), because I felt it clouded my vision. It was a suggestion from Amelia Lyon at her workshop and I think it really helped me develop my own style.
It was a small change that made one of the biggest impacts on my business.
Oh, don't get me wrong my blog reader is FULL, just with design blogs and fashion blogs! ;)