Highlights of recent work include:

Likelihood Analysis
The promise of CMB anistropy observations is the precise determination of cosmological parameters. To accomplish this, we use likelihood analysis. Here, we see several examples of likelihood contours for various experiments and slices through parameter space.

We also use related techniques to determine the power spectrum of CMB anisotropies.

Mapmaking and filtering
We also have computer-intensive techniques for transforming raw experimental data into maps of the CMB sky.
Foreground Removal
Combinations of these techniques are necessary in order to deal with foreground contamination, which is expected to become a bigger problem in upcoming high-resolution experiments.
Here are some references to recent papers and proceedings. More are coming!

Andrew Jaffe