The soft pomeron no longer describes all diffractive data measured at HERA. As the photon virtuality and/or the vector meson mass increases a new dependence on W2 emerges. As we investigate the pomeron more closely, a new type of dynamical pomeron may begin to play a rôle: a dynamical pomeron whose structure is being measured in DIS. These data are consistent with a partonic description of the exchanged object which may be described by pQCD. The experimental work focuses on extending the lever arms and increasing the precision in t, M2, W2 and Q2 in order to explore this new structure. Before more precise tests can be made, further theoretical and experimental input is required to reduce the uncertainties due to non-diffractive backgrounds and proton dissociation as well as the treatment of FL and radiative corrections.