Wide variety of reliable web sites

There is a lot of information on the web and not all of it is reliable. If you want to believe there are aliens in a aircraft hanger in California there are plenty of people to join you in your belief.
For reliable information it is better to stick to Universities and government sites. There are other tried and tested sites and then there are the news papers. News papers are good for news but they are not too interested on content, just in selling news for advertising. Quick and interesting, not always reliable. 
Government sites
Information sites
News and blogs