Let's start by stating the obvious; if it sounds too good to be true, then it is too good to be true. Many online money making sites lead you to believe that you will get rich quickly in exchange for minimum work. However this is never the case, and most websites sell your email to spammers, resort to multiple ways to avoid paying you, pay very low rates, or simply rob you after they have accessed and sold your credit card details to other companies.
The most popular credit card scam involves acquiring your credit card details, supposedly for a small shipping charge, but buried in the fine print is authorization for negative option subscriptions. Negative option subscriptions are when a merchant subscribes you to receive goods that you never requested. It is then up to you to decline these goods, otherwise it is assumed that you have agreed to purchase the goods and your card is charged. The other common credit card scam is when you are enticed to sign up for free trials using your credit card. In this case the companies are counting on you to forget to cancel the card when the free trial period is up. And if you do remember to cancel, then you'll be made to jump through hoops before the cancellation is complete. Finally there is the risk of credit card information being stolen by individuals masquerading as companies, in a scam known as phishing. Then you have no choice but to cancel your card immediately, as your account will simply be drained by thieves.
Certainly sites exist that can earn you money, but it will never be very much. Any site that pays a decent salary will require hard work. Take Demand Studios for example. There is no doubt that they pay. But most users are unable to sustain a writing career with them, as, at fifteen dollars an article they require well researched content with titles such as, "The Fuel Pump Location in a Mercedes C280,' "The Driver Compaq Lite on the LTR482 Will Not Write,' and "How to Hook Up a Tiller to a GX335.' Unless you are a mechanic, electrician, plumber, computer engineer, or rocket scientist, writing for Demand Studios will require at least an entire day of research and referencing. Fifteen dollars per article may sound good, but fifteen dollars for an entire day's worth of hard work with no guarantee of acceptance at the end, doesn't compute quite so well.
So before registering with a "money-making" site, bear in mind the following: Firstly, in Google search, type the site's name followed by the word "scam' or "review.' This will take you to blogs and forums filled with the opinions of previous and current users of that site. If the opinions are consistently negative, assume that the site is a scam. Secondly if anyone requests your credit card details or worse still, your social security number, immediately close that page and walk away, they are most likely trapping you into a credit card scam, as detailed above. And finally be smart. If you wish to try out a site, open a new email account for all the spam you'll receive and keep your expectations low. None of these sites will make you rich or be a suitable replacement for your regular job.
New sites, such as those mentioned in this article are being born every day. There doesn't appear to be any effective regulation to prevent them, so it is up to you to be vigilant and be aware that many websites that promise to pay, are in fact scams.