If people like your website then you might offers something that is of personal value to your users. It may therefore be appropriate to give your users the opportunity to donate money to you via your website (this is a popular revenue model used by most Web sites). Instead of creating their own payment, you can use an existing solution (PayPal.com offers a free solution that makes this very easy).
Other popular online get-rich-quick schemes can include survey taking, whereby a user would complete surveys of varying subjects and get paid for the time. Get-rich-quick schemes take advantage of this and often promise that users can make a good income from doing this, which is not the case. Individuals who partake in survey taking can expect small profits that can supplement another full-time income.
It doesn’t pay much, but if you’re a healthy person and want to make a bit of extra money online, the AchieveMint app will reward you for doing things like walking, tracking your food, or taking health surveys. AchieveMint works by connecting to fitness apps you might already be using like Fitbit, RunKeeper, Healthkit, and MyFitnessPal and then giving you points for certain actions. For every 10,000 points, you earn $10 with no limit on your earnings.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.