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.Comment: 10 pages, LaTeX; requires ws-procs9x6.cls and rotating_pr.sty (World
Scientific proceedings style, 9 x 6 inch trim size); presented at "Deserfest:
A celebration of the life and works of Stanley Deser" in Ann Arbor, Michigan,
3-5 April 2004, and to appear in the Proceedings; v2 and v3 refs adde
