Resonant two-photon ionization (R2PI) spectra of benzene-acetic acid binary clusters BA,, with n = 1-6 are reported. The results indicate that cluster formation from acetic acid vapor proceeds mainly via the association of preformed hydrogen-bonded dimers. The spectral shift of the BA complex is consistent with pi-hydro,gen bonding interaction with the benzene ring. The spectral shifts of the BA(2) and BA(3) dusters are consistent with a predominantly dispersion interaction which is enhanced upon electronic excitation of the benzene molecule. Spectroscopic evidence for the formation of (Ne).(C6H6).(CH3COOH), clusters, with n 4 and 6, is presented. The direction and magnitude of the spectral shift indicate that the C6H6 Ne and the C6H6... (CH3COOH), structures are retained in the multicomponent clusters, suggesting no perturbations due to the weak C6H6... Ne interaction.