Low x news for Monte Carlo

This talk is a review of news in low x physics which, I think, would be useful for writing of the Monte Carlo codes. The following topics are discussed here: (i) the next-to-leading order BFKLPomeron; (ii) two indications for shadowing corrections (SC) in DIS from HERA data; (iii) matching of “soft” and “hard” photon proton interactions; and (iv) survival probability for large rapidity gap ( LRG ) processes in hadron-hadron scattering and DIS. I hope, that our current understanding of these topics will allow us to narrow the gap between the MC codes and our microscopic theory QCD.