NCBI pubmed Commons/@PubMedCommons is a new system that enables researchers to share their opinions about scientific publications. Researchers can comment on any publication indexed by PubMed, and read the comments of others.
Now that we can add some comments to the papers in pubmed, I suggest to flag the articles to mark the deprecated softwares, databases, hyperlinks using a simple controlled syntax. Here are a few examples: the line starts with '!MOVED' or '!NOTFOUND' and is followed by a URL or/and a list of PMID or/and a quoted comment.
Examples!MOVED: for http://www.ncbi.nlm.nih.gov/pubmed/8392714 (Rebase/1993) to http://www.ncbi.nlm.nih.gov/pubmed/19846593 (Rebase/2010)
!MOVED PMID:19846593 "A more recent version"In http://www.ncbi.nlm.nih.gov/pubmed/19919682 the URL has moved to http://biogps.org.
!MOVED <http://biogps.org>I moved the sources of http://www.ncbi.nlm.nih.gov/pubmed/9682060 to github
!MOVED <https://github.com/lindenb/cloneit/tree/master/c>!NOTFOUND: for http://www.ncbi.nlm.nih.gov/pubmed/9545460 ( Biocat EXCEL template ) url http://www.ebi.ac.uk/biocat/biocat.html returns a 404.
!NOTFOUND "The URL http://www.ebi.ac.uk/biocat/biocat.html was not found "