It took me a bit to figure out exactly what Scott was doing with the site but it appears that its the first example I've ever seen of Social Media featuring Social Media about Social Media.
Confusing? Not so, Scott writes a blog (social media) featuring screen caps of Tweets from Twitter (social media) that are about LinkedIn (social media).
It's ingenious really since it transcends most of us who comment on social media by simply blogging about it.
All kidding aside, his posts demonstrate the value that Twitter can provide in researching a topic (in this case LinkedIn).