PLoS ONE which was first announced in June, is a peer review platform that uses both traditional and web-based comments. Each article is peer-reviewed with oversight by an academic board, much like other scientific journals. After publication, however, articles published on PLoS ONE are then opened up for reader annotation, discussion and rating, creating a dialog between author and reader.
As a Public Library of Science offering, the product is completely open-source and published under the Creative Commons License. Rather than charging users for the content, PLoS charges a nominal ($1,250) fee to authors to have their articles reviewed.
For various reasons, this blog focuses largely on business and financial content. However, there is quite a bit more innovation going on in the STM market today. Both Nature and Public Library of Science have previously been named to the "50 Content Companies that Matter" list. I have no doubt that these two organizations will continue to push the envelope in 2007.