Question about grounded theory, Ethnography and Phenomenology

Q:
I just started my research. I'm confused the use of grounded theory, Ethnography and Phenomenology...

A:
You may have a clue by reading my thesis, chapter 3.2.

It may help if you read this book and think what your research stands on? 
Creswell (2003). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches, 2nd ed. London: Sage.

For example, ask yourself what your research process probably is? (read P.6 Alternative knowledge positions)
ask yourself what strategy of inquiry you (read P.13 Alternative Strategies of inquiry).

Other resources:

• Franchuk, J. E. (2004). Phenomenology vs. grounded theory: The appropriate Approach to use to study, the perspectives of instructional librarians on their roleIn information literacy education for undergraduates.
• Goulding, C. (2005). "Grounded theory, ethnography and phenomenology: a comparative analysis of three qualitative strategies for marketing research". European Journal of Marketing, 39 (3/4), 294-308. 
• Starks, H. &Trinidad, S.B. (2007). "Choose Your Method: A Comparison of Phenomenology, Discourse Analysis, and Grounded Theory". Qualitative Health Research. 17(10). 1372-1380.
• A teaching martial by Brian J. Brown. "Qualitative methodologies: ethnography, phenomenology, grounded theory and more".