JetN2 - a jet algorithm that uses N**2 geometrical approach, similar to C++ FastJet.
SCJet - a traditional N*3 algorithm
KTjet - uses pseudorapidity and float values. A fast light-weight implementation.
Note: Use JetN2 where possible. This algorithm has a speed similar to C++ FastJet.
S.Chekanov (ANL) and I. Pogrebnyak (ANL/MSU)