A database is basically a collection of information. Many library databases are simply collections of journals and other scholarly materials. So, when we talk about databases, we're talking about places you can go to look for academic articles!
Databases can be subject-specific. This means the material found in the database is geared toward a limited range of disciplines. Library Literature & Information Science Full Text is a database that contains primarily material about the field of Information. You wouldn't bother checking that database if you were doing a project on sea turtles.
Databases can also be multidisciplinary. This means that the material found in the database is wide-ranging, and may cover an extremely broad range of topics. Web of Science is one such database, but there are others. You could certainly find information on sea turtles in Web of Science, but you could also find information on cartooning, for example.
These top databases for IM resources available at Dalhousie are your starting point for most information management-related research. But don't stop here! Have a look at the list of multidisciplinary databases.
These databases can be used to search for information on a wide variety of topics. They are great starting points for research.
Boolean search expressions are magical formulas compatible with most databases in which keywords are combined with Boolean operators to create super effective searches.
Zombies are terrifying former humans that want to eat your brain and/or transform you into a zombie (their exact motivations are unclear).
ZomBool is a 'choose-your-own-path' video game created by a Dal librarian to help you learn how to survive the zombie apocalypse (maybe) with the help of search strategies and Boolean operators (PC or Mac).