A viral video is one that becomes popular through internet sharing, typically through video sharing websites, social media and email. They have characteristics of being timely, relevant, and compelling. yet sometimes when we apply these rules, the videos still don't go viral.
There is no secret formula to making a video spread like wildfire, but there are ways you can market your video to give it what it needs to go viral, even if some of that is just a little luck.
This infographic from WhoIsHostingThis offers a wealth of tips on how to make your video content go viral.
Some key strategies for success:
Start out with marketing: Don't skip the basics before trying to make your video go viral. Make a marketing plan and follow it so you know your plan of attack.
Have a good understanding of how things get shared on the internet: Use social networking sites, Reddit, Hacker News, etc to share your video. Reach out to well-known bloggers and get them involved. Don't be afraid to ask people you know to help get your video shared too.
Consider Emotion: Hitting the right emotional cue is the key. According to inc.com videos showing joy and humor are most likely to get forwarded or shared. Videos showing alertness and attentiveness are also likely to get shared.
There's more in the full graphic. Take a look.