When you do your search, use key words in your general area of interest. If you are searching the network, start with the broad field and follow the path to a more specific area. Look under what is called review articles, review journals, and review books. Review articles organize a great deal of articles efficiently. They are topical reviews written by a scholar who has read about and argued specific topics.
Review journals are helpful tools to give overviews of a specific topic.
Make observations . If possible make observations of the phenomena you are planning to research. However, actual observations may help you understand the science involved in the problem. Think and Analyze . While reading and observing, take time to think and analyze.