Amazon Mechanical Turk - The online market place for work.
PartnerStack - GrowSumo helps growing companies increase sales, signups, and leads through partnerships Whether you're starting fresh, migrating a partner program, or ready for hyper-growth - we're ready, are you?
Crowdin - Localize your product in a seamless way
Invite Referrals - Invite Referrals is the simplest tool to design and launch customer referral campaigns.
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.
Talon.One - Talon.One is the world's most flexible Promotion Engine.