In November 2008, the Board of Directors of OCLC unilaterally issued a new Policy for Use and Transfer of WorldCat Records[39] that would have required member libraries to include an OCLC policy note on their bibliographic records; the policy caused an uproar among librarian bloggers.[40] Among those who protested the policy was the non-librarian activist Aaron Swartz, who believed the policy would threaten projects such as the Open Library, Zotero, and Wikipedia, and who started a petition to "Stop the OCLC powergrab".[41][42] Swartz's petition garnered 858 signatures, but the details of his proposed actions went largely unheeded.[40] Within a few months, the library community had forced OCLC to retract its policy and to create a Review Board to consult with member libraries more transparently.[40] In August 2012, OCLC recommended that member libraries adopt the Open Data Commons Attribution (ODC-BY) license when sharing library catalog data, although some member libraries have explicit agreements with OCLC that they can publish catalog data using the CC0 Public Domain Dedication.[43][44]