http://www.ingentaconnect.com/content/charleston/chadv/2010/00000011/00000004/art00005

Comparative review by Jeffrey Beall.

Excerpt:

"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 scholarly 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 façade. None of these publishers mentions digital preservation. Indeed, any of these publishers could disappear at a moment's notice, resulting in the loss of its content..."

These publishers are reviewed:

Academic Journals

Academic Journals, Inc.

ANSINetwork

Dove Press

Insight Knowledge

Knowledgia Review

Libertas Academia

Science Publications

Scientific Journals International