Eureka Alert http://www.eurekalert.org/index.php
News service by the AAAS (American Association for the Advancement of Science) the publishers of Science. There is a relation with Sciencenow. Latest new is available to anybody. the arechive only on subscprition basis.
News@Nature http://www.nature.com/news/index.html
The big competitor of Science also has its own news service. The main difficulty is the micx beteen free news and subscription based news. Even when you have access to the electronic version of Nature news is still blocked.
Science Daily http://www.sciencedaily.com/
A well orgainzed science website that is updated every 15 minutes.
SciCentral http://www.scicentral.com/
Apart from the specific scientific news services many ordinary services sch as newpapers and broadcasting services have their S&T channels. NYTimes, NRC, or Volkskrant, BBC, CNN, et cetera.
WG 20091118