Ars Technica, which is mostly a PC enthusiast web page, has started a daily science page called Nobel Intent. It looks very good!
Actually, Wired magazine is always worth a look, but I only see biology stuff once or twice a week.
I really love the whole silicon-meets-carbon trend.
Update: Wired links to The Nikon Small World 2005 prizes honoring photography made with a light microscope. Beautiful stuff. (Full disclosure: I like Leicas better)