Amazon Mechanical Turk - The online market place for work.
Swagbucks - Swagbucks is a loyalty program that offers individuals rewards for engaging in various activities. Users can earn reward points for performing Internet searches, purchasing items from affiliated vendors, or completing polls.
Crowdin - Localize your product in a seamless way
GrabPoints - Earn free gift cards by completing offers, downloading apps, watching videos and more.
SerpClix - SerpClix is a click exchange network used to send more real clicks to your Google SERP. You can click to earn money or buy clicks to rank higher on Google.
PointsPrizes - Earn free gift card codes from top brands, by doing offers and watching advertisements.