With bloggers being now in the limelight of censors, policemen, investigators, lawyers and employers, one should take more care and have more attention for the privacy possibilities of blogging. Privacy enhancing or preserving it is called for other software or online service.

Vos is a new bloghost that let you just do that.

and what is more, it is develivered by a very famous bloggingcompany

http://www.sixapart.com/vox/tour/privacy.html

will this become a trend ? Hope so, because if you can install rights for people to comment or write only if they are registered or accepted, so that should be possible for reading rights as well.