  This talk, presented at the 5th Rencontres du Vietnam 2004, gives a review of
the cosmological implications of the cosmic microwave background (CMB) data.
The observational progress that has been made over the past decade is discussed
and recent constraints on cosmological parameters are given. The concordance
model is presented and the implications of the most recent data for
cosmological inflation, reionisation and dark energy are described. Finally,
the expectations for the next decade of CMB cosmology are summarised.
