There's a lot of information out there. How do you decide whether it's good information? Use the following criteria and see if your information passes muster.
Currency - Is it the most up-to-date information on the topic?
Relevancy - Is the information fully relevant to your topic? Does it cover all aspects, or is it just tangentially related?
Authority - Is the author qualified to be speaking or writing about the topic? Does he/she have degrees related to the topic? If there isn't an author, how do you know that the information is reliable?
Purpose - If the website is selling something, then it has an inherent bias and you should be very skeptical. Even if you agree with their point of view, it's better to find a source that is unbiased and as objective as possible.