I recently recommended MSN Spaces to my dad to start up a blog.  He got really excited about it and began posting his thoughts and photographs.  Today, we discovered that for people to leave comments, they must have a .NET passport.  Personally, I have nothing against passport.  I think it's great, but not everyone does.  There are lots of people scared to create a passport because they think there is some kind of privacy issue involved. I can see this as a defense against comment spam on the blogs, but to my dad, it's a barrier for his friends and family to join in the conversation.  We're looking into all the options, but I may recommend he look elsewhere for his blog hosting needs.