Viral video marketing campaigns have become an effective way for companies to promote their brands through entertaining video content shared online. These videos are easily passed from person to person via social media and email, potentially reaching a large global audience. Examples like Cadbury's Gorilla commercial and Sick Puppies' "Free Hugs" campaign demonstrated how viral videos can increase popularity for both products and artists without any obvious advertising. Many advertisers now actively create low-cost viral videos to capitalize on this marketing approach of quickly reaching large audiences worldwide through online sharing.