Such is the case with a new print ad campaign from perhaps what many may consider an unlikely source: a public television station.

FORBES: This Advertising Is Completely Fake And It's Brilliant

Consider AlienVault, a Spanish company that wrote open source tools to help companies report on computer security intrusions.

FORBES: Four Ways Start-ups Can Get and Keep Customers

He also challenged Khalilzad's argument that Russian forces were waging a "campaign of terror" there, essentially telling council members to consider the source.

CNN: U.S.: Russia trying to topple Georgian government

Totzke advises all smartphone users to enable a password, quickly download security updates from their phones operator system and carefully consider the source of any applications they download.

CNN: Smartphone security threats likely to rise

Or in other cases, studies with negative conclusions may never be published, so next time you'll hear a piece of advice about what you should or shouldn't be eating or drinking, consider the source.

NPR: Researchers Find Bias in Nutrition Studies