What are predatory open access publishers ? Jeffrey Beall, Auraria Library, University of Colorado Denver in The Charleston Advisor v.11 no.4 April 2010 provides a succinct description and identifies some offenders:
"These publishers are predatory because their mission is not to promote, preserve, and make available scholarship; instead, their mission is to exploit the author-pays, Open-Access model for their own profit. They work by spamming e-mail lists, with calls for papers and invitations to serve on nominal editorial boards. If you subscribe to any professional e-mail lists, you likely have received some of these solicitations. Also, these publishers typically provide little or no peer-review. In fact, in most cases, their peer-review process is a facade. None of these publishers mentions digital preservation. Indeed, any of these publishers could disappear at a moment's notice, resulting in the loss of content ..."