Consider these questions as you evaluate sources of information, especially freely-available web resources.Different criteria will be more or less important depending on your situation or need.
The reliability, truthfulness and correctness of the content.
The timeliness of the information.
The reason the information exists.
The source of the information.
The value of the information for your needs.
Thanks to Sarah Blakeslee (Meriam Library, California State University, Chico) for permission to use these evaluation criteria.