  We show how observations of temperature fluctuations in cosmic microwave
background (CMB) can be used to extract information related to the large scale
structure, including dark matter distribution, pressure and halo velocities
involving the line of sight, transverse and rotational components. The
frequency spectrum can be used to separate the SZ effect from thermal
fluctuations. The measurement of higher order correlations in CMB can be used
to extract effects involving lensing and kinetic SZ effects. A high
signal-to-noise arcminute scale CMB experiment can be used to construct the
weak lensing convergence, which is useful given that the background source, CMB
anisotropies at the last scattering surface, is well understood.
