This document summarizes a presentation about the resource discovery tool PubMed. It notes that PubMed is developed by the National Library of Medicine, indexes over 21 million citations and abstracts in the biomedical and life sciences fields. The document outlines that PubMed's primary component is Medline, which indexes over 19 million journal article references over 60 years. Strengths of PubMed include that it is free, integrated with other NLM search engines, updated daily, and provides accurate search results. Weaknesses include a lack of citation analysis and sorting results by citations.