In a few years, there will be more elaborate ways to filter the level of credibility of the information you use a search engine.   It will be one of your preferences.  You'll be able to filter out results based on low, medium or high cross-reference verification levels.  

High verification, for example, could mean that you'll only get results that have been cross-referenced with a select group of encyclopedias, or leading newspapers, or the Library of Congress, or the National Institute of Health, or certain accredited blogs.   

It will be a much more sophisticated version of the option google currently offers that allows you to pre-select which domains you want it to search within, like .com, or .edu.

While there already exist a number of information filters, keep in mind, in terms of intelligence, the internet is still in grade school.