The very interesting publication Article-Level Metrics and the Evolution of Scientific Impact Export by Cameron Neylon and Shirley Wu (PLoS Biol 2009(Nov); 7(11): e1000242 [Epub 2009(Nov 17)][PubMed Citation]) is receiving attention on FriendFeed [here] and Topsy [here] and has been bookmarked on Connotea [here].
There’s also a related blog post, A brief analysis of commenting at BMC, PLoS, and BMJ by Shirley Wu on her blog, I was lost but now I live here, November 18, 2009. Excerpt:
One of the many issues Cameron and I touched on was the problem of commenting. Most people probably aren’t aware of the problem; after all, commenting is alive and well on the internet in most places you look! But click over to PLoS or BioMed Central (BMC) and the comment sections are the digital equivalent of rolling tumbleweed.
Comment: A major long-term benefit of OA seems likely to be the development of a much more efficient and equitable system that will make full use of the potential of the Internet to facilitate the quality-filtration of new knowledge. The available set of relevant online resources continues to evolve rapidly.