There's an article explaining it here: https://en.wikipedia.org/wiki/1%25_rule https://en.wikipedia.org/wiki/1%25_rule. Of any social network, typically 1% are

There's an article explaining it here: https://en.wikipedia.org/wiki/1%25_rule https://en.wikipedia.org/wiki/1%25_rule. Of any social network, typically 1% are the power users, 9% are intermittent contributors and 90% are lurkers.