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
ASIS&T - American Society for Information Science and Technology
ALISE - Association for Library and Information Science Education
ALCTS - Association for Library Collections & Technical Services
CILIP - Chartered Institute of Library and Information Professionals
IFLA - International Federation of Library Associations and Institutions