HCD Research also use the point system. That is, they award you points for completing any paid activity on the site. The point system is a simple one in which $1 is equal to 100 points. The amount of points (read as money) you earn for each survey will vary for each survey, depending on its length and nature. However, on average, you will earn between 100 points to 500 points per study (which is between $1.00 to $5.00).
Some websites, like eBay will pay you as much as $6 to sign up to their sites and place bids. Another website, Stamps.com, will pay you as much as $10 for signing up for their free trial program. However, with the latter, if you do not cancel the free trial before expiration, then you will be billed monthly for their programs (in the case of Stamps, its $15.99 per month).
Some features of InboxDollars are quite unique and not found on other paid-survey websites. Apart from the usual payment or survey taking, the website also enables members to read emails, sign up for corporate offers, watch videos, play games and generally surf the web in order to earn income. (For the record, InboxDollars isn't the only site that will pay you for playing games and surfing the web. Swagbucks is generally regarded as the best in the business when it comes to that kind of free money. Click here to read my honest review of Swagbucks)
In my opinion, Inbox Dollars is a scam. After registering and wasting hours upon hours to make a few cents I started receiving a swarm of emails, 83 in one day to be exact, from the companies I was questioned about in the surveys. Not to mention an abundance of calls from unknown numbers. What an invasion of privacy! This is not worth the hassle. Be smart and don’t fall for this one!
In a few cases, InboxDollars directed me to “exclusive offers” instead of straightforward surveys. One required me to give my name, address, phone number and birthdate to earn money and enter a sweepstakes for a Target gift card. Another time, I was prompted to give my email address and choose between Coke and Pepsi in exchange for $1 and a sweepstakes entry. I didn’t want to give my contact information to what appeared to be third-party sites, so I clicked out of these promotions.

