Mike - actually I'm the person who posted the link above =) I'm the editor of this blog, I don't write everything but I post it for others.
There are several people here who work with exchange who have their own blogs, and they want to post their own content on their blogs. Every once in a while, I will point to that content rather than re-printing it here. Although you may know about all the other exchange blogs, not everyone does.
We definitely focus on making this blog a producer of content, but from time to time there will be something from another softie exchange blog that I will link to. I try not to do it that often.