Knol - Wikipedia Jump to content From Wikipedia, the free encyclopedia Google publishing project (2007–2011) For other uses, see Knol (disambiguation) Knol A knol on knee surgery Type of site Reference Dissolved October 1, 2012 2012-10-01 Owner Google Created by Google URL knol.g…

Freebase (database) - Wikipedia Jump to content From Wikipedia, the free encyclopedia Online knowledge base (2007–2016) Freebase Type of site Online database Available in Owner Metaweb Technologies Google URL www .freebase .com dead link Commercial No Registration Optional Launch…

Wikipedia project page WikiProject Cleanup is a resource for Wikipedia cleanup information, posting cleanup requests, and discussion. This project covers cleanup issues including page layout , wikification , spelling, grammar and typographical errors , tone , and source formattin…