If you use WordPress, import your blog’s feed into Facebook Notes, and are a little annoyed that the Facebook comments aren’t reflected on your “real blog,” then you might want to install Facebook CommentsTNG:
Facebook CommentsTNG is a plugin for your WordPress blog that will spider your notes page and find imported WordPress blogs and bring the comments back into WordPress.
The Facebook comments show up with the comment writer’s name, a link to Facebook, and a Facebook logo as the avatar.
I suppose there are a couple small privacy concerns here.
First, you need to provide your Facebook credentials in order to crawl the notes and import the comments. I’m guessing Facebook Connect doesn’t provide an API for this. So it’s a question of whether you trust a guy named Phil to write a benevolent WP plugin. You might want to take a few seconds to view the plugin code.
Second, your “friends” who have commented on Facebook haven’t necessarily opted in to having their full name published on the Internet outside of a closed system like Facebook. But if this is something that actually concerns them, I’d advise that they not comment on anything on Facebook. Just visit the WordPress blog and make up an anonymous handle. Trusting a website to keep you safe/anonymous/private is stupid. You need to take responsibility for your own online presence.