This would be another good place to check for useful materials. These very similar databases index journal, magazine and newspaper articles. Many entries contain the full text of the article. You will need a password to access the databases. This would be another good place to check for useful materials.
Subject guides are extremely selective.
It then ranks the Web pages based on how relevant they are to your search terms. Standard search engines are not selective. Again this can be either good or bad. The idea is that since no single search engine can index everything on the Web, meta search engines make it possible to identify more Web sites. You may be surprised at the varying results.