Recently I have discovered a few blogs which are actually pretty good, but which are, oddly for a long time blogger, extremely self contained. Some of them have no links in the text, some of them link to themselves.
When news media moved into the net, they tried to avoid links in order to hold the reader in one spot. It didn't work, people got bored and used search engines. So the news media, not being totally stupid, started working with the power of the links and made several different types, both to their own archives and to other sources.
But these new bloggers, who do serious and nice work, so they are no spammers of marketing blogs or anything like that, they link to themselves, don't share the link love, and when they write comments on other peoples' blogs they put in links to themselves. This is a way to use the gift economy of links which I find is ungenerous and selfish: use other peoples' sites to link themselves, but not link back.
I don't know what I'll do yet. So far I am reading the comments, checking each blog carefully, and if it's unique and interesting I let the comments pass. But I am a little surprised at this isolation, this way to use a weblog as a place for display, not for connections and sharing.