There are many ways to make money online
Sell your own product
Most small businesses sell a product. The most difficult part of this is making the product at a low cost. Often, a profitable product is information. What area do you consider yourself an expert in? For example, if you know a lot about coaching football, then why not write a short book about it? There are people who will pay to know what you know.
Sell someone else's product
You can sign up as an affiliate. By doing this, you will resell someone else's product by referring people to the supplier site. Each time someone you referred makes a purchase, you get a percentage of the profit. The percentage you get from each sale varies from company to company. For the most part it is worth it though, because you are getting money for doing little work.
Try to find affiliate programs that are honest about tracking of sales and one that will pay on time.
You could try the Biz-Logo.com Logo Design Affiliate Program and Never Blue Ads. It's great if you target small business owners who might need a business logo or other graphic work.
Sell advertising space
If you want to sell advertising space, you want to have a high-traffic web site. A good way to get high volumes of traffic is to offer free information on your site. Once you achieve this, advertisers will be willing to pay you to display their advertisements on your site.
Contextual advertising (like Google's AdSense program) offers a real alternative to traditional advertising - and many web site owners are using it to make money from their web sites.
Take online surveys
Think of getting paid to take online surveys as getting paid to surf the Internet. Just type "getting paid to do surveys" into the search box at Google and hit "Enter." There should be several survey options and you will get paid to do them. Just don't expect to get rich.