20. Wikipedia: WikiProject Vandalism studies/Study1, http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Vandalism_studies/Study1 (last visited December 29, 2008) [hereinafter Vandalism Study]. Another survey estimated that 42 percent of errors were corrected before any readers saw the erroneous information, rendering those errors inconsequential. See Reid Priedhorsky et al., “Creating, Destroying and Restoring Value in Wikipedia” (November 2007) (unpublished paper), available at http://www-users.cs.umn.edu/~reid/papers/group282-priedhorsky.pdf.