Goldberg (Goldberg, L. R. (1999). "A broad-bandwidth, public-domain, personality inventory measuring the lower-level facets of several five-factor models." In: I. Mervielde, I. Deary, F. De Fruyt, & F. Ostendorf (Eds.), "Personality psychology in Europe" (Vol. 7, pp. 7-28). Tilburg, The Netherlands: Tilburg University Press) has argued that the commercialization of personality measures limits the range of questions investigated in empirical research. We propose that the commercialization of interest measures has had a similar effect on research in vocational psychology. Following Goldberg's example of developing public-domain personality markers, we also propose that the development of public-domain interest markers would facilitate new directions in career-related research. The present study outlines the development and validation of a set of public-domain "Basic Interest Markers" (BIMs) that are freely available on a website. Using Day and Rounds' (Day, Susan. X, & Rounds, J. (1997). "A little more than kin, and less than kind: Basic interests in vocational research and career counseling." "Career Development Quarterly," 45, 207-220) basic interest taxonomy, 343 items and 31 BIM scales were generated. Validity evidence is presented from correlations with the General Occupational Themes and Basic Interest Scales of the Strong Interest Inventory (Harmon, L. W., Hansen, J. C., Borgen, F. H., & Hammer, A. L. (1994). "Strong Interest Inventory applications and technical guide." Stanford, CA: Stanford University Press). Discriminant validity is demonstrated by the capacity for the BIMs to differentiate major field of education or training. Implications for research and use in applied settings are discussed. (Contains 1 figure and 5 tables.)