Ethnography is a qualitative research method used to understand particular social or cultural groups. Researchers immerse themselves in a group to gain insight from an insider's perspective through participation, interviews, and analyzing documents. Key aspects of ethnography include choosing a group to study, determining how long to participate before drawing conclusions, and following important research steps like gaining access, documenting behaviors, analyzing data, and verifying findings. When conducted rigorously, ethnography provides valuable insights into how groups maintain culture through communication and social interaction.