Keep an open mind and ask questions about your source, such as...

• Who? Who is the author or creator? What are their credentials for this topic?
• What? Is the content relevant to your topic? Is it too general or too specific?
• Where? Is it published in a book, magazine, newspaper, or blog, etc.? Does that publisher have a good reputation?
• When? How recent is it? Is the information outdated?
• Why? Why did the author write this? Is he or she biased?