We give a brief review of recent developments in the study of the large-scale velocity field of galaxies since the international workshop on Cosmic Flows held in July 1999 in Victoria , B.C .
Peculiar velocities ( PVs ) yield a tight and unique constraint on cosmological characteristics , independent of \Lambda and biasing , such as the cosmological matter density parameter ( \Omega _ { m } ) and the convergence of bulk flows on large scales .
Significant progress towards incorporating non-linear dynamics and improvements of velocity field reconstruction techniques have led to a rigorous control of errors and much refined cosmic flow analyses .
Current investigations favor low-amplitude ( \mathrel { \vbox { \offinterlineskip \hbox { $ < $ } \kern 1.29 pt \hbox { $ \sim$ } } } 250 km s ^ { -1 } ) bulk flows on the largest scales ( \mathrel { \vbox { \offinterlineskip \hbox { $ < $ } \kern 1.29 pt \hbox { $ \sim$ } } } 100 h ^ { -1 } Mpc ) probed reliably by existing redshift-distance surveys , consistent with favored \Lambda CDM cosmogonies .
Tidal field analyses also suggest that the Shapley Concentration ( SC ) , located behind the Great Attractor ( GA ) , might play an important dynamical role , even at the Local Group .
Low-amplitude density fluctuations on very large scales generate the overall large-scale streaming motions while massive attractors like the GA , and Perseus-Pisces account for smaller scale motions which are superposed on the large-scale flow .
Likelihood analyses of galaxy PVs , in the framework of flat CDM cosmology , now provide tight constraints of \Omega _ { m } = 0.35 \pm 0.05 .
A four-fold size increase of our data base is expected in \sim 4 - 5 years with the completion of next generation FP/TF surveys and automated supernovae searches within 20,000 km s ^ { -1 } .