Anyone doing any kind of information search should expect to find authoritative and reliable resources. Although Google and other Internet search engines may provide thousands of "hits" on any topic, those hits may not meet the criteria regarding reliable information. It may be difficult and time-consuming for you to locate relevant material among thousands of Google results and to evaluate the reliability of the sites you find using Google.
Library databases do a lot of the hard work of the research process for you. They have been professionally evaluated and selected by librarians for their authoritative and reliable content. They have been chosen for their relevance to your search whether it be for homework or just a need to satisfy an interest towards a purchase, a service, or professional certifications.
Library databases contain full-text peer-reviewed and scholarly journals as well as newspapers, professional, trade, and popular magazines. They provide primary source materials, reference sources, statistical resources, and a wealth of other information you can trust.