Once a week the American Institute of Physics sums up the latest advances in physics, from cosmology to nanotubes. Browse past issues, search for particular topics, and sign up to receive the news via email. AIP Physics News Update - Biweekly newsletter of new developments in physics for the general public. Colutron Research - Text books on atmospheric electrostatics and cosmology are available for free download.
Summaries are approximately one page long and are issued two or more times every week.
FYI subscriptions are free.