As per the IB EE guide - Using the internet as a resource for finding information is more and more commonplace, and it is a tremendous resource. However, it must be used critically and with care. One important thing to be aware of is that unlike resources found in a library in printed form, those found on the internet may not have been through a review or editing process.
Students should:
know appropriate search engines to use
not rely exclusively on sources found on the internet
have a clear and focused research question to help them search more directly on the internet (given the amount of information available it is easy to be overwhelmed)
critically evaluate the reliability and validity of the information presented on the internet
keep a detailed record of all references, in accordance with the IB’s minimum requirements, ensuring that the URL of where the source was located is written down correctly. This includes recording the date that the site was accessed. The Researcher's reflection space (RRS) is a good tool for supporting this practice. (“Home”)
IB Advice on evaluting source (“EE at ISB - on Excellent Research”)
Selecting good source (“EE at ISB - on Excellent Research”)
Examining your sources checklist (“EE at ISB - on Excellent Research”)
How to Evaluate sources (McMaster Libraries, “How Library Stuff Works: How to Evaluate Resources (the CRAAP Test)”)
How to identify a credible source - There are a few criteria to look at right away when assessing a source. Together, these criteria form what is known as the CRAAP test.
The 5 components of the CRAAP test
Currency: Is the source up-to-date?
Relevance: Is the source relevant to your research?
Authority: Where is the source published? Who is the author? Are they considered reputable and trustworthy in their field?
Accuracy: Is the source supported by evidence? Are the claims cited correctly?
Purpose: What was the motive behind publishing this source? (George)
CRAPP Test worksheet
Good website for more information on Evaluating sources(Scribbr)