High mass dijet and ttbar resonance searches
  We present searches for dijet and ttbar mass resonances using between 0.68 and 2.1 fb-1 of Tevatron Run II data collected by the CDF and D0 detectors. No evidence of new physics is found, and 95% C.L. limits are set on a number of new physics hypotheses, such as excited quark, Randal-Sundrum graviton, Z', W', color-octet technirho, axigluon and flavor-universal coloron, E6 diquark, quark compositeness, ADD and TeV-1-sized LED, massive gluon. 
Alex Melnitchouk (for the CDF and D0 Collaboration)