The fact of the matter is that computers are machines, but the people who operate them are human. Information from the computer is subject to the errors and flaws of the human condition. Anyone who accesses that information assumes the computer is right, until the bounced checks start rolling in. Even worse than human error, however, is human lies and greed. When using the Internet for research one must always remember that anyone with a computer and an Internet account can dispense information as truth.
Myth becomes reality in the blink of a screen saver.
The ending of the web address or URL is a clue. Every source has an agenda, and knowing that agenda will help you when considering reliability. Businesses desire to make money. They will present information that is beneficial to their goal of making money. They are likely to omit or screen information that would work against their goal of making money.