Many different sources have been discussed so far. In doing so, intended audience and publishing method were the angles we explored. In the diagram below the intended audience dimension is plotted against the traditionally/non-traditionally published dimension. The resulting matrix provides a framework for identifying nine different source type categories. All of these categories include documents that may be helpful in some way, provided that you choose carefully. An essential tool in selecting appropriate sources is the CRAAP test.
The table below includes examples for all identified source types that are credible and may be useful for your purpose.
These cover new developments in a particular profession or industry, and publish brief reports on research as well as feature articles that focus on topics of interest to professionals in the target community.
Ex.: Consumer Marketing, Adweek.
Professional books contain reliable and in-depth information, such as best practices (documented strategies and tactics employed by top-performing organizations and companies). Choose recent books, as information from professional books gets outdated fast.
Non-traditionally published (or: grey literature sources)
Profession specific websites
Although generally not subjected to rigorous quality control sources that fall into this category can be valuable.