The 90-9-1 rule, popularized by Jacob Nielsen, based on research by Will Hall, says that 90% of users in an online community are lurkers who don’t contribute, while 9% contribute sometimes and 1% contribute frequently.
Last year, Paul Schneider attempted to update this principle by looking at a relatively small data set of 15 clients and suggested that the the rule should now be 70-20-10.
Once in a while, I see someone comment or write a post about how 90-9-1 is dead or no longer relevant or something similar. Sooner or later, if it reaches enough people, someone will come along and suggest the 70-20-10 rule needs to be updated, too.
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