We have done some work on using AMT/Crowdflower to summarise Arabic documents  and also using experts to build Arabic resources needed for MultiLing 2011/2013 tasks ,. In the meanwhile we are working on hiring Arabic native speaker experts to build an Arabic lexicon.
You should be able to run your tasks on AMT but you need to be careful when it comes to evaluating the quality and consistency of the results.
 Using Mechanical Turk to Create a Corpus of Arabic Summaries:
 TAC 2011 MultiLing Pilot Overview
 Multi-document multilingual summarization corpus preparation, Part 1: Arabic, English, Greek, Chinese, Romanian
Dr Mahmoud El-Haj
Senior Research Associate
School of Computing and Communications
<mailto:m.el-haj at lancaster.ac.uk> m.el-haj at lancaster.ac.uk
From: corpora-bounces at uib.no [mailto:corpora-bounces at uib.no] On Behalf Of imen touati Sent: Wednesday, August 05, 2015 9:10 PM To: corpora at uib.no Subject: [Corpora-List] Crowdsourcing for arabic tasks
Please have any one idea about any group like Amazon Mechanical turk that doing crowdsourcing for tasks in arabic and that employs arabic language expert (more precisely the task is the annotation of arabic documents in order to do opinion mining and sentiment analysis ).
Thank you in advance.
PhD Computer Science student
Faculty of Economic Sciences and management of Sfax ANLP Research Group
Address : FSEGS, BP 1088, 3018 Sfax, Tunisia Email : <mailto:bayoudhi.amine at gmail.com> ismi_touati at yahoo.fr
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