I am using conceptual map in different stages of research as a tool to organise main concepts and as a research pool to track researched areas. I am looking to publications to support and defend their use.
I’m not an expert in this field, but if you can reach this book:
Passin T.B. (2004). Explorer’s Guide to the Semantic Web. Manning Publications. Greenwich (USA)
you’ll find chapter 3 titled „Navigating information with topic maps”. The whole book presents gradual steps in knowledge representation methods towards ontologies and Semantic Web. It may give you some hints of structuring your research beyond conceptual maps in terms of knowledge processing.
I work on that subject, I have an article for you if you want, request full-text of "Tagging strategy based on the semio-contextual approach of corpus for the elaboration of controled databases"
You may the following link to the Pathfinder network tool useful. It is essentially a tool (available free) which allows you to examine the associative strength between semantic concepts and knowledge.
The site link below should provide ideas about where to look, source articles, etc. and also offers free access to software and instructional videos for using C mapping tools, etc.
Try to find the following articles that provide solid background and literature review about concepts and conceptual maps:
[1] Martin J Eppler. A comparison between concept maps, mind maps, conceptual diagrams, and visual metaphors as complementary tools for knowledge construction and sharing. Information Visualization, September 21, 2006, vol. 5, no. 3, 202-210. doi: 10.1057/palgrave.ivs.9500131.
[2] Martin Davies. Concept mapping, mind mapping and argument mapping: what are the differences and do they matter? Higher Education, 2011, Volume 62, Issue 3, pp 279-301. doi: 10.1007/s10734-010-9387-6.
I have these articles and some more articles related to concepts in qualitative research, because one of my research interests is related to concept and knowledge development through qualitative research.