The comparison of Raman spectra of a pure water solution with those of an aqueous AG colloid reveals only very weak differences. This indicates, not unexpectedly, a low electromagnetic (EM) enhancement factor ( F ≈ 100) for the Raman scattering of water. Just in opposite to these weak effects, the addition of Ag sol to a 10 −10 M l rhodamine 6G solution causes the replacement of the former solution fluorescence by a similar intense surface enhanced resonance Raman scattering (SERRS). At higher dye concentrations (up to 10 −8 M l ) it is replaced by both, by SERRS and surface fluorescence. The SERRS cross section is generally higher than 10 −20 cm 2 sr −1 molecule −1 photon −1. This indicates that a model based on a combination of weak EM resonances with molecular resonance Raman effects cannot explain a total enhancement by more than 10 orders of magnitude. An energy-transfer model seems to be more suitable.