I've been chasing after the radio afterglows from Gamma-Ray Bursts, especially GRB 030329, with both the VLA and VLBA.
We have now finished a couple large VLBI surveys of Active Galactic Nuclei. Here is a link to those 300+ maps in the PR and CJ surveys and the visibility data. My summer 2002 student, Lindsey Pollack, has analyzed polarimetry from 182 sources in CJF. I continue to do a lot of followup observations with the VLA, OVRO mma, Palomar, Keck, and VLBA telescopes.