Was just reminded (thanks, Tim) of the possibility of using a special tag in bookmarking services to tag links to documents of interest to a given community. I think this is a fairly well-established practice. Note that e.g. the OAI-ORE project is using Connotea to bookmark pages of interest and tagging them “oaiore” which can then be easily retrieved using the link http://www.connotea.org/tag/oaiore.
This is a companion discussion topic for the original entry at https://0-www-crossref-org.lib.rivier.edu/blog/a-modest-proposal/