When using the Web for research, it is important to evaluate what you find, because no one curates or rates it.  There are different methods of deciding if a source is credible, but an easy-to-remember evaluation acronym to use is CRAAP:

CURRENCY    
timeliness of the information

RELEVANCE
importance of the information for your needs

AUTHORITY
source of the information

ACCURACY
reliability and correctness of the content

PURPOSE
the reason for it or why the information exists