You join a "Get Paid To (GPT)" site/program, usually giving them your name, email and other demographic information, and the site/program owner delivers advertisers ads to your email box, and you click on the link in the email to visit the advertisers' website - yes, you are actually get  paid to view ads! Usually you get paid cash or "points" for reading and clicking. Most of those sites also offer other ways to get paid such as shop and sign up offers.  

Most of these "GetPaidTo" sites are short lived - for some reason, they don't "survive" for a long time, they come and go. It's not uncommon you heard people complaining they are scam! Also, majority of those sites pay really low, they usually pay less than one cents, which make them not worth your time!

Tip: if you do those low paying (1 cents or less per email) paid to read emails, make sure you cash out as soon as you reach payout - you never know when they are going to close their doors!

However, there are a few honest, reliable and high paying sites that actually worth joining - Below are the BEST paying PTR sites, all pay 1 cent and up - most of them are cash paying site either by Paypal or check (sign up links will open in a new window so that you may come back to the next one when finished with the current one.):

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Hits4Pay - You receive $10 in your account when sign up as a member. They send you emails according to your interest. You earn $0.02 for each email. Your cash out is $25.00. Pay via Paypal. They also have a two-tier referral system. Their emails do expire so make sure check their emails once a day.

DealsnCash - They pay $5.00 for sign up, $0.02 - $0.05 for each email/ad. They also have a double tier referral system. Minimum cash out requirement is $30, and they pay vis Paypal. (Please make sure your Email provider don't block DealsnCash. DealnCash probably is the highest paying PTR program, and they have plenty ads if you select the right categories. (please read comment below to find hint.) DealsnCash definitely worth joining!

MyPoints - You earn 5 points, which worth about $0.03 for reading an email, and cash out minimum is 1500 points ($10). They also send surveys that offer 10 - 50 points, you earn 10 points if disqualify. Payout are various gift cards. I have cashed out quite a few Walmart gift certificates and they send the cards very quickly.

InBoxDollars - You get $5 just for signing up at Inboxdollar.  They pay $0.05 for each email, and you can also earn $0.02 for each "Cash Search" on their site. You can also earn from taking daily surveys, completing paid offers and from your referrals. You must earn at least $30.00 to request a check.

SendEarning - You get $5.00 sign up bonus. They pay $0.05 for each email, and you can also make money by taking daily surveys, completing offers and shoppings. Minimum payout is $30.


Tip:
As you can see some of the sites above have a pretty high cash out requirement of $25 or $30. So finding active referrals will greatly shorten the time needed to reach the minimum payout. Even it's just a couple of friends signing up as your referrals and actively clicking ads, will be very helpful.