One of the best ways to find out what's of interest to science reporters and the public is to keep abreast of science news stories. Reading news about science can often provide insight into ways of describing science and how to engage scientific and public audiences.
AAAS News - from the AAAS Office of Public Programs
NSF News - from the NSF Office of Legislative and Public Affairs
EurekAlert! - science news service operated by AAAS
ScienceNOW - daily news and weekly stories from Science magazine