Warc.com is, of course, the one-stop shop for advertising and marketing research which covers a vast range of data and information useful for all assignments. The database is found via library.lincoln.ac.uk > Find > Databases > W > Warc.com. Case studies are the most practical way of linking theory to practice. Theory, when treated in isolation, does not serve its true purpose without being tested in the real world. Warc.com is able to show you whether it does work or not.
WARC database factsheet by Daren Mansfield on Scribd