Social networks for business bloggers
MyBlogLog is a social network for bloggers.
If you are in search of a network of bloggers, MyBlogLog seems to be the right starting place for you.
It belongs to Yahoo and, except a dispute about an unjustly banned blogger, they have good user reviews.
It looks like they try to do their best to constently fight spammers and have very rigorous terms of use and privacy policy.