I'm amazed how many people recently have started internalizing their links. Often, when referring to something external to our blogs, we place a link on a keyword so that readers can easily click on the link to see what we're talking about. Others have started replacing those external links with related articles on their own blogs. I then have to Google up the external reference, because the blog in question doesn't link externally. After I do that two or three times, I unsubscribe.