Crowdsourcing is a specific sourcing model in which individuals or organizations use contributions from Internet users to obtain needed services or ideas.
That is why Tunisian leader Habib Bourguiba began a trial of Arabization and Tunisification of Tunisia and spread free basic education for all Tunisians.    That contributed to the progressive and partial minimisation of code-switching from European languages in Tunisian and the use of code-switching from Standard Arabic.   Furthermore, the creation of the Établissement de la radiodiffusion-télévision tunisienne in 1966 and the nationwide spread of television with the contact of dialects led to a dialect leveling by the 1980s.  
VLG Extractor . Alessandro Bergamo, Chen Fang, Lorenzo Torresani (Dartmouth College)
Genetic genealogy is a combination of traditional genealogy with genetics . The rise of personal DNA testing, after the turn of the century, by companies such as Gene by Gene , FTDNA , GeneTree , 23andMe , and , has led to public and semipublic databases of DNA testing which uses crowdsourcing techniques. In recent years, citizen science projects have become increasingly focused providing benefits to scientific research.    This includes support, organization, and dissemination of personal DNA (genetic) testing. Similar to amateur astronomy , citizen scientists encouraged by volunteer organizations like the International Society of Genetic Genealogy ,  have provided valuable information and research to the professional scientific community.