Integrability + Supersymmetry + Boundary: Life on the edge is not so   dull after all!
  After a brief review of integrability, first in the absence and then in the presence of a boundary, I outline the construction of actions for the N=1 and N=2 boundary sine-Gordon models. The key point is to introduce Fermionic boundary degrees of freedom in the boundary actions. 
Rafael I. Nepomechie