Unfortunately, the process is not easy as you think. 

Let's start evaluating web sites by taking the following tutorial (When each slide ends, be SURE to click on the Next button on the top right):

Credible Sources Count!
Provided by Vaughan University (a Canadian higher institution), this is a tutorial that lets you see clearly the challenges of the World Wide Web.  (Click the Restart button above the screen if you have a blank screen).