  We apply the stabilization technique, developed by T. Zelenyak in 1960s for
parabolic equations, on curve shortening flow in $\R^3$, and derive several new
monotonicity formulas. All of them share one main feature: the dependence of
the "energy" term on the angle between the position vector and the plane
orthogonal to the tangent vector. The first formula deals with the projection
of the curve on the unit sphere, and computes the derivative of its length. The
second formula is the generalization of the classical formula of G. Huisken,
while the third one is the generalization of the monotonicity formula with
logarithmic terms previously derived by the author for plane curves.
