Also includes newswires, and select journals and magazines. Coverage from as early as 1980 to the present. Especially useful for research on the environment, demographics, international relations, and public administration. It is a searchable database of files collected by a computer program. Descriptions or annotations in these search engine catalogs are generated by the software.
Directories contain sites that have been selected and reviewed by people.
A number of these directories provide their own annotations to sites, enhancing the information you will find about a site. Learn to evaluate each web site before using it. There is no foolproof method to be sure the information is accurate but here are some tips and things to look out for. This kind of information is of an official nature and generally as accurate as can be expected. This is a webpage that has many examples for citing both paper and electronic resources.