Predatory publishers will often go to great lengths to market their perceived credibility. To sell their product, they need to establish a successful-looking, professional facade for their customers. Some common tactics they use include:
In recent years, individuals within both the publishing and library industries have been on the lookout for predatory publishers. The below links list recent retractions within publishing as well as known or suspected predatory publishers. The latter is maintained by blogger Jeremy Beall who also writes about current issues with open access.
Beall's List of Predatory Publishers (Recently Updated)
The most harmful effect of predatory publishing is that work is accepted for publication that would otherwise not meet the standards required for scholarly publications. There are other contributing factors and problems, however. For the author, some important considerations include: