The 2014 list (actually two lists) were posted by Jeffery Beall (U. of Colorado Denver) on his Scholarly Open Access blog late last week.
There are more than 477 publishers listed. The 2013 list contained 225 publishers.
The first [list] includes questionable, scholarly open-access publishers. Each of these publishers has a portfolio that ranges from just a few to hundreds of individual journal titles.
The second list includes individual journals that do not publish under the platform of any publisher — they are essentially standalone, questionable journals.
In both cases, we recommend that researchers, scientists, and academics avoid doing business with these publishers and journals. Scholars should avoid sending article submissions to them, serving on their editorial boards, reviewing papers for them, or advertising in them. Also, tenure and promotion committees should give extra scrutiny to articles published in these journals, for many of them include instances of research misconduct.
Direct to Complete Blog Post and 2014 List
Hat Tip: Matt Weaver