Books
Bruhn Jensen, Klaus (ed) (2002) ) A handbook of Media and Communication Research. Qualitative and Quantitative Methodologies, London: Routledge. Chapters 1, 2, 3, 7, 8, 9 and 15.
Hellevik, Ottar (1988) Introduction to Causal Analysis. Exploring Survey Data by Crosstabulation. Scandinavian University Press. Chapters 1-4.
Kvale, Steinar and Svend Brinkmann (2009). Interviews: Learning the Craft of Qualitative Research Interviewing. Chapters 6-11.
Neuendorf, Kimberly A (2002). Content Analysis Guidebook. Sage. Chapters 1, 4, 5, 6, 7 and 8.
Yin, Robert K. (2008): Case study research: Design and Methods. Sage. Chapters 1 – 3 (ok with earlier editions of the book).
Compendium
Collier, David (1993). “The Comparative Approach” in Finifter, Ada W. (ed) Political Science: The State of the Discipline II, Washington: American Political Science Association.
Glaser, Barney G. & Strauss, Anselm (1967). The Discovery of Grounded Theory. Chapters 1 and 2.
Silverman, David (2006) “Ethnography and observation” in Interpreting Qualitative Data, Sage, Chapter 3.
Thomas, Robert J (1990) “Interviewing Important People in Big Companies” in Hertz, Rosanna and Imber, Jonathan B (eds) Studying elites using qualitative methods, Sage.
Articles available online
Flyvbjerg, Bent (2006): Five misunderstandings about case-study research, Qualitative Inquiry 12-2. Available online here and here
Frendreid, John P. (1983) Explanation of Variation and Detection of Covariation: The Purpose and Logic of Comparative Analysis. Comparative Political Studies (vol.2, 255-272). Available online
Lars Mj?set (2005). Can grounded theory solve the problems of its critics? Sosiologisk tidsskrift. Available online
Lijphart, Arend (1971). Comparative Politics and the Comparative Method. The American Political Science Review 682-693. Available online
Markham, Annette N. (2004). The Methods, Politics, and Ethics of representation in Online Ethnography. in Denzin, N. & Lincoln, Y. (Eds.). Handbook of Qualitative Research, 3rd Edition (pp. 793-820). Available online
Taylor, T.L. (1999): Life in Virtual Worlds: Plural Existence, Multimodalities, and Other Online Research Challenges. American behavioral Scientist. Available online