It really depends which type of grounded theory you want to use. I used constructivist grounded theory for my thesis - from where some of these references come.
Glaser and Strauss wrote the original text in 1967:
Glaser B, Strauss A. The Discovery of Grounded Theory. Chicago: Aldine Publishing Co.; 1967.
They then went their separate ways and Strauss then worked with Corbin:
Strauss A, Corbin J. Basics of Qualitative Research: Techniques and Procedures for Developing Grounded Theory . 2nd ed. London: Sage Publications Ltd.; 1998.
- objectivist grounded theory
Glaser also continued to write about grounded theory, from his perspective e.g. Glaser B. Emergence vs Forcing: Basics of Grounded Theory Analysis. Mill Valley CA: Sociology Press; 1992.
- positivist grounded theory; he felt that Strauss and Corbin were not carrying out grounded theory as he and Strauss had originally intended, and were 'forcing' the data to emerge.
I see that a member of ResearchGate - Sarah Cowley - has published a comparison of the two methods that you can download from her publication pages:
Developing a grounded theory approach: a comparison of Glaser and Strauss. Helen Heath, Sarah Cowley. International Journal of Nursing Studies 03/2004; 41(2):141-50. · https://www.researchgate.net/profile/Sarah_Cowley/publications?sorting=title&page=2
My references regarding constructivist grounded theory are mainly from Kathy Charmaz. Constructivist grounded theory focuses on the subjective meaning created of the respondents. I wanted to identify the subjective meaning (to those who I interviewed) of what it was like to live with faecal incontinence.
Charmaz K. 'Discovering' chronic illness: using grounded theory. Social Science and Medicine 1990; 30(11):1161-1172.
Charmaz K. Grounded Theory: Objectivist and Constructivist Methods. In: Denzin NK, Lincoln YS, editors. Handbook of Qualitative Research. 2nd ed. Thousand Oaks: Sage Publications, Inc.; 2000: 509-535.
Charmaz K. Grounded theory. In: Smith JA, Harré R, Van Langenhove N, editors. Rethinking Methods in Psychology. London: Sage Publications; 1995: 27-45.
Charmaz K. The body, identity, and self. Sociological Quarterly 1995; 36(4):657-680.
Charmaz K. Loss of self: a fundamental form of suffering in the chronically ill. Sociology of Health and Illness 1983; 5(2):168-195.
Since then, many more publications about grounded theory have been published (including by Charmaz, who is still publishing - search Google Scholar if this type of grounded theory is what you need).
I agree with Mary about the list of grounded theory literature, but I would like to add some recent and my favorite books:
[1] Kathy Charmaz. Constructing Grounded Theory: A Practical Guide through Qualitative Analysis. SAGE Publications. 2006.
[2] Melanie Birks and Jane Mills. Grounded theory: a practical guide. SAGE Publications. 2011.
Personally, I prefer and use Charmaz constructivist approach to grounded theory. In her book, methods are well explained and the book is readable and easy to follow. Using grounded theory is quite different and exciting experience for me since I have background in computer science and software engineering.
However, you should think about your philosophical positioning before adopting any approach, because your positioning will guide your decisions in research.
Excellent methodological articles you can find in journals like
[1] Qualitative Research: http://qrj.sagepub.com/
[2] Qualitative Inquiry: http://qix.sagepub.com/
and in journals related to nursing and health research.
Charmaz, Kathy (2000), “Grounded Theory: Objectivist and Constructivist Methods,” in Handbook of Qualitative Research, Handbook of Qualitative Research, N. K. Denzin and Y. S. Lincoln, eds., Sage, 509–35.
Gioia, Dennis A, Kevin G Corley, and Aimee L Hamilton (2012), “Seeking Qualitative Rigor in Inductive Research : Notes on the Gioia Methodology,” 16(1), 15–31.
Goulding, Christina (1997), “Consumer research, interpretive paradigms and methodological ambiguities,” European Journal of Marketing, 33(9/10), 859–73.
Charmaz is very good. (Kathy Charmaz. Constructing Grounded Theory: A Practical Guide through Qualitative Analysis, 2006.) I think the book is well written and I used to teach it to MA students. There is also the SAGE handbook of grounded theory (2007) which is edited by her as well and gives a good overview.
There is also a really useful online tool - Sage Digital Case repository. http://srmo.sagepub.com/searchresults?f_0=QSEARCH_MT&q_0=grounded+theory
Whether it is for yourself or for teaching there are a lot of case study examples of how methods are used in practice - I am sure there are cases their on the different use of grounded theory.
I think it's clear that Charmaz is the go-to for constructivist grounded theory, but I would want to highlight (mentioned above by Dan):
Bryant, A.; Charmaz, K. (eds.) (2007) The SAGE Handbook of Grounded Theory. LA: Sage.
The collected chapters of this book provided both a good general overview as well as specific examples of the variety of projects that may benefit from a grounded theory approach.
I used ground theory methods in my research and found Kathy Charmaz the most helpful, particularly Constructing Grounded Theory, A practical guide through qualitative analysis, 2006, Sage. Another useful text was Lyn Richards & Janice M Morse, Readme First for a User's Guide to Qualitative Methods 2nd ed, 2007, Sage. This book offers a practical and thoughtful approach to undertaking qual research. And Miles & Huberman for excellent fine grained detail in doing analysis. Hope this helps. Best wishes, Robyn Ward