The most trustworthy website I discovered on the internet is  ySense (formerly ClixSense).  To date, I've earned $149,718.  On ySense, you may  make money by taking online surveys.

Payment proof

Multiple Earning Options

Paid Surveys, Cash Offers, Referrals / Affiliate Income(Signup Commission, Activity Commission)

Signup Commission

You will earn $0.1 to $0.3 each signup via your affiliate link, depending on the country of your referrer. When your referral earns $5, you'll get $2.

Activity Commission

When your referrals complete any survey, cash offer, or job, you can earn 30% of their earnings in the evening.

ySense Survey

You can earn $0.5 to $5 for taking one survey.

If you refer 20 their total income is $500.  Then you can earn  up to $100 every month ,  

signup with your affiliate link, you will earn $0.1 to $0.3