Books are still the main focus for research in libraries, along with encyclopedias, dictionaries, and reference materials. While the internet can be unorganized and unreliable, it is a large source of information that can be navigated starting with search engines like Google or alternatives like DuckDuckGo, directories like Yahoo, or subscription services. The school librarian recommends following the PLUS method for effective research: planning, location, use, and self-evaluation, and using tools like mind maps and specific search terms. Sources from the internet need to be properly cited to avoid plagiarism.