PeanutButterWiki or PBwiki is a commercial wiki farm run by three graduates of Stanford University: David Weekly, Ramit Sethi, and Nathan Schmidt. The company claims to be the largest consumer wiki farm currently in operation[ citation needed ]. According to Alexa, it has greater traffic and reach than competitors Wetpaint and Wikispaces, though less than Wikipedia or Wikia. Presumably the claim to be the largest wiki farm is based on the number of wikis, rather than the overall traffic to those wikis.