We present preliminary measurements of the CP asymmetry parameters and CP content in
B0-->K+K-Ks decays, with phiKs events excluded. In a sample of 227M BB pairs collected 
by the BABAR detector at the PEPII B-Factory at SLAC, we find the CP parameters to be 
S = -0.42 +/- 0.17 +/- 0.04 and C =  0.10 +/- 0.14 +/- 0.06,
where the first error is statistical and the second is systematic.
Extracting the fraction of CP -even final states from angular moments
f(CP-even) = 0.89 +/- 0.08 +/- 0.06, and setting C=0, we determine
sin(2beta) = 0.55 +/- 0.22 +/- 0.04 +/- 0.11, where the last error is due to 
uncertainty on the CP content.