Online Scientific Information Portals?
Knacklappen asks: "On August 5th, vascoda, Germany's new central access point for comprehensive scientific information, goes online. It will incorporate 23 virtual libraries and 4 scientific information networks, and offer these information for free. For the paying customer, there will also be access to electronic journals. What freely accessible scientific information portals do you use? I usually turn to the following when searching for articles: arxiv.org, AVEL, CiteSeer, dissonline.de, DOE Information Bridge, DSpace, ETD, NDLTD, OAIster, OPUS, TheO. Are there any others that you can recommend?"
At www.pubmed.gov, you'll find abstracts of virtually every medical journal article published over the last 30 or so years. It includes the Medline database and some other stuff.
If you're wondering about a specific topic, fire it up, and in minutes you'll know more than most physicians ever will about real science in medicine.
While this is a single magazine and not a portal, the nature of Science News is that each article is a summary of some interesting piece of research. The articles on the web site have links and references to the source material, in case you want to read the orginal papers that the article was based on.
While you have to be a magazine subscriber to see the full text of all the articles (non-subscribers get the full text to some articles), anybody can read the references to get the original sources.