StartUpLift helps companies get feedback on their website and pays testers $5 for visiting websites and providing the owners with feedback. A simple task for the testers that helps website owners improve their user experience. The startups provide a set of tasks they want testers to do on the website and feedbacks are accepted on a first come first served basis - they can also reject feedback if they are poor quality. All you have to do it log in to the website and go to your dashboard to see if there are any feedback requests in the queue. They recommend you only do a maximum of 5 feedback per day to be able to maintain the quality they require.
If no feedback jobs are available when you log in you need to keep checking back as more are available on a regular basis.