  This is an extended summary of the two parallel sessions held at MG11: PPN1
``Strong Gravity and Binaries'' (chaired by L.B. and L.G.) and PPN2
``Post-Newtonian Dynamics in Binary Objects'' (chaired by G.S.). The aims and
contents of these sessions were close to each other and overlapping. It is
natural to review both sessions in one joint contribution to the MG11
Proceedings. The summary places the delivered talks in a broader perspective of
current studies in this area. One can find more details in individual
contributions of the respective authors.
