Trade magazines and journals are written by experts, journalists, and industry insiders. These aren't peer reviewed like scholarly journals, so they're not always acceptable for university research. BUT: they are far more widely read and can contain up-to-date, insightful articles.
If you cannot access articles on the publishers' websites, find them in Browzine, SU's journal finder.
These links lead directly to journals in subscription databases. Browse within a journal by year or issue, or search for specific keywords.