Every day, countless new memes, videos and blogs are uploaded to the Internet. Most of these languish in (relative) obscurity. But a few go viral: they explode across the web, attracting the attention of hundreds of thousands (sometimes millions) of people. Viral content has the power to capture the public's attention for days, weeks, or even longer. For those aiming to reach a vast audience—be it for a corporate marketing endeavor, advocating a personal cause, or showcasing your cat's incredible