Polymer Ionic Liquids(PILs)are polymerized version of Ionic Liquids.They are not only polyelectrolytes: due to charge frustration,many of them are liquid in the bulk,are processable,and combine simply polymer with ionic liquid character.In this talk I will present their properties, talk about self-organization and delineate the extraordinary potential of PILs to stabilize very different kind of interfaces in a highly efficient fashion.