Alqahtani, Bashayr et al in the International Journal of Computer Applications: “Crowdsourcing is lately developed expression which meaning that the outsourcing process of activities by crowd in the form of an ‘open call’ or a firm to an online community. An assigned task can be completed by any member of the crowd and be paid due to their efforts, also to attract the best possible ideas and approaches to boost innovation or to complete data processing tasks. Though the labor organization form was pioneered in the calculation sector, businesses companies have begun using ‘crowdsourcing’ for a various domain of tasks that they discover can be preferable completed and good achieved with crowds’ members instead of their own employees. This research will define the principle of crowdsourcing, types of it, challenges of crowdsourcing, also it will explain advantages and disadvantages and the way that firms are utilizing marketing task application crowdsourcing for the completion, discuss some of legal issues and ethical issues with regulations. Finally, this article will be completed as a paper research for crowdsourcing…(More)”.