"Meet PubMed Commons: The new comments forum in PubMed" http://pubmedcommonsblog.ncbi.nlm.n...med-commons-the-new-comments-forum-in-pubmed/ - this is an article on PubMed Commons which anybody can now read. Unfortunately only people who are listed in PubMed (i.e. authors of published papers, letters, etc.) can make comments. I've already posted 23 comments on ME/CFS papers. These are a mixture of unpublished letters, unpublished e-letters as well as more minor comments: http://www.ncbi.nlm.nih.gov/myncbi/tomkindlon/comments/ I've seen the odd other comment on ME/CFS papers also.