Amazon Mechanical Turk - The online market place for work.
Prolific - Quickly find high-quality survey participants
Micro Work 4 all - New Website aiming to get more workers and job seekers to perform tiny task and make money.
InboxDollars - Earn cash for your everyday online activities.
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.
CashKarma - CashKarma app comes up with an opportunity for users to earn money through their phones.