The main site of Pandas International has pictures and updates on damage to the Wolong panda reserve, plus rescue efforts underway:
And of course NPR's All Things Considered, which was already in Chengdu preparing for a special week of China coverage when the earthquake occurred (and has done outstanding work since then), had this good report about the pandas on its latest show.
Update: Here is another of the post-quake photos of Wolong, via Pandas International:
