I just read in Library Stuff that Nature Research Journals and Web Publishing have recently launched three blogs:
1) Action Potential - "Action Potential is a blog by the editors of Nature Neuroscience - and a forum for our readers, authors and the entire neuroscience community. We'll discuss what's new and exciting in neuroscience, be it in our journal or elsewhere."
2) Free Association - "Welcome to Free Association, the Nature Genetics blog. Check here regularly for links and editorial comment on research and news in genetics, as well as reader feedback."
3) Nascent - "Nature Publishing Group's blog on web technology and science."

Nature Publishing is also podcasting as well. So far it looks like they do four podcasts a month (one per week).
Here is a list of their podcast programs.

• 01 December 2005: Touch down on Titan, the giant water scorpion, Ebola virus hunters, stem-cell controversies, and chilling news on the Gulf Stream.
• 24 November 2005: Pharaoh ant highway codes, high temperature super conductors, body-snatching tunicates, the E. coli camera, mosquito bites, and touching base with the latest product from Google.
• 17 November 2005: fresh water and climate change, komodo dragons, typhoid Mary disease carriers, chaos and cryptography, and the latest from the intelligent design trials in the USA.
• 10 November 2005: a new biodiesel fuel, avoiding cosmic collisions, how insects measure day length, and the latest news from Nature
• 02 November 2005: malaria, photonics, volcanoes, algal nutrition, and flying through the eye of Hurricane Rita
• 26 October 2005: HapMap and human genetics, Saturn's rings, sharks, and the missives of Darwin and Einstein
• 19 October 2005: stem cells, semiconductors, the chimp genome and swimming rats
• 12 October 2005: satellites, comets, Hobbits and ancient noodles
• 5 October 2005: Spanish and avian flu pandemics, earthquakes, gamma ray bursts and bees behaving badly