Professional associations publish information that show a profession's priorities and concerns over time.
Discover the association(s) relevant for practitioners in your field by doing an online search for the word "association" plus your career of choice and/or by checking the Encyclopedia of Associations, located in the Ready Reference section (behind the Ellis Library Reference Desk) at HS17.G3.
Once you know the key associations in your field, you can look them up as authors in MERLIN and many article databases. There is usually helpful information on the association's Web site, although some of it may be behind a members-only wall.
On websites, look for: