Abstract: In this paper, a bibliometric study on the interconnections between the fuzzy logic theory field and the other soft-computing techniques is presented. Bibliometric maps showing the associations between the main concepts between these research fields are provided for the periods 1990–1999, 2000–2003, and 2004–2007. The maps provide insight into the structure of these fields. They visualize the division of the field into several subfields and they indicate the relations between these subfields. The maps are created by co-word analysis. Experts can use these maps to forecast emerging trends for hybrid intelligent systems.