viral growth

is dependent on person-to-person transmission as a side-effect, and necessary consequence of normal product use, not any kind of product evangelism.

. Instead, products that exhibit viral growth depend on person-to-person transmission as a necessary consequence of normal product use. Customers are not intentionally acting as evangelist... they are not necessarily trying to spread the word about the product. Growth happens automatically as a side effect of customers using the product. Viruses are not optional.

viral growth, n.Definitions

viral growth