I have two Facebook accounts - one personal and one for my blog, and then in addition to that I have a fan page. I'd definitely recommend starting a profile account for your blog - there are many other bloggers that have them, and I've found it's a fantastic way to network. Usually what I do is I send someone within the 'blogging circle' a friend request, and then when they accept it I post on their wall saying thank you, and ask them to check out my blog's fan page. By doing this, I've gained 100+ followers/readers on my fan page, and found 400+ people to network with on the profile account. And they don't seem to have minded too much - I think they're just happy to network themselves. :)
Here's my blog's profile account: http://www.facebook.com/lifebetweenpages
And the fan page: http://www.facebook.com/lifebetweenpagesblog
But if you really don't want Facebook, then try Twitter; that provides excellent networking opportunities, too. :-))
I post my blogs post on facebook but have it so whenever a blog post is posted, then my facebook page is updated ( I used linkedinblogs). I've gained a few followers from facebook but not all that many.
I have my blog connected to Networked Blogs so every time I make a post it places it on my Facebook wall. I also have created a page just for my blog on Facebook that's connected to my Twitter account so every time I post on one it updates the other.