In recent years, with the spread of Open Access, negative signs have also appeared: pseudo-scientific publishers and journals (predatory, hijacked), misleading metrics frustrate researchers who want to publish. The number of pseudo-scientific journals and deceptive metrics are growing rapidly, their action is aggressive and lack of scientific quality and peer review. Invitations are usually received in the form of unsolicited e-mails asking the target person to publish in suspicious journals.
There is currently no official list of pseudo-scientific, misleading, predatory journals and indicators. An american librarian, Jeffrey Beall dealt in detail with Open Access abuses in his blog; however, the blog ended on January 15, 2017. (Available only in archived version: http://web.archive.org/web/20161230053202/https://scholarlyoa.com/)
You can find more detailed information about the dangers of publishing in the following submenus: