Capterra is a website that helps clients when buying any kind of Software or Software services.
Writing a quality review takes 10 minutes, for which if it gets approved by their team you could earn 10 USD in Amazon Giftcards.
They pay up to 10 reviews per month - that's 100 bucks. For me it is awesome deal. It takes some time to get those reviews evaluated, but so far I have earned one of the highest rated reviewers and I am waiting my first Giftcards.