Discovery and Academic Search Complete are great places for general research, but if you are looking for specialized information, you should use subject-specific databases. The following is a list of databases that LSU subscribes to that are focused on library and information science. Using these databases gives you focused, relevant results.
Why have I included a database that focuses on retrospective information? Literature Reviews. If you want to understand a topic or technique, you need to know its history.
Keep in mind that while these are focused on LIS, other databases also contain information about LIS. You can find a list of some of these by filtering the list of databases on the LSU Libraries web site by subject.