Nature Publishing Group has won a "Webby" for the "Best Science Website" for 2008.
Besides searching access to all of their journals, their website features the following:
"Through Nature.com, users can access news and features from Nature News and visit Naturejobs, NPG’s careers information and science recruitment website. NPG launched Connotea, the document tagging and social bookmarking web site in 2003. Nature Network, NPG’s social networking service connects scientists at a global and local level. The success of the weekly Nature Podcast has led to the construction of NPG’s own in-house podcast studio. The site also hosts a number of NPG blogs, the preprint service Nature Precedings, and country-focussed portals such as Nature China and Nature India."
For more details about Nature.com and the Webbies, here is the item in Knowledgespeak Newsletter.