I am sure I'll get a lot of fleck for suggesting but I think we need to start building walls around blogosphere, to keep out spammers, pretenders, and freeloaders. Isn't this elitism? Yup. It is and I don't care that it is. I want good content inside the wall and all the trash thrown outside. Links going out may result in pulling blogs inside or pushing them outside. It's a dynamic social network for blogs, if you will.
In the end, this is where we are going except the wall will be the wall of ranks, ranks that push splogs to the bottom and the rest to the top. But I think it's better to know exactly where it is that we are incrementally heading toward.