ALS Association| Ice Bucket Challenge

The Ice Bucket Challenge is now considered one of the legendary social media campaigns of all time after using a simple (but unpleasant and hilarious) challenge to raise over $115 million dollars for a disease that most people had never even heard of.

What helped propel the virality was the fact that people were publicly challenging their friends and family on social media, which made them more likely to get involved than someone asking for a retweet. 

http://www.alsa.org