Hi,
We at squadrun will be doing this job using innovative crowd sourced model. I will request you to checkout http://Squadrun.co. Founders of slideshare,snapdeal,zomato are some of our investors. Our algorithms ensure high quality work and thousands of players on Squadrun ensures it happens very quickly. Let me know if you want more details about our quality check algorithms and the platform in general.
I would request you to try out services once and I am sure you may not be looking elsewhere again :)
Looking forward to your response.
Regards,
Parth