Duke Libraries offers a LibGuide as an introduction to qualitative research. The guide includes references to textbooks, experts, tips, software, and tools for collecting, managing, and analyzing non-numerical data (e.g. text, audio, video, or pictures).
Written from a marketing research perspective, yet it contains a useful overview and lists a number of considerations and guidelines helpful to planning research and analyzing focus group data. Provided by Duke's Office of Assessment.
An overview of planning and conducting focus groups and analyzing focus group data posted by the National Oceanic and Atmospheric Administration's Coastal Services Center with a focus on coastal management, but broad applicability