Legendrian knots, transverse knots and combinatorial Floer homology
  Using the combinatorial approach to knot Floer homology, we define an invariant for Legendrian knots in the three-sphere, which takes values in link Floer homology. This invariant can be used to also construct an invariant of transverse knots. 
Peter Ozsvath, Zoltan Szabo, and Dylan Thurston