Affiliate Programs are also called associate programs, are agreement in which an website merchant  pays affiliate Web sites a commission to send them traffic. These affiliate Web sites  links to the merchant site and are paid according to an  agreement. This agreement is usually based on the number of people the affiliate sends to the merchant’s site, or the number of people they send who buy something or perform some other action. Some arrangements pay according to the number of people who visit the page containing their merchant site’s banner advertisement. Basically, if a link on an affiliate site brings the merchant site traffic or money, the merchant site pays the affiliate site . Recruiting affiliates is an excellent way to sell products online, but it can also be a cheap and effective marketing strategy; it’s a good way to get the word out about your site.

There are at least three parties in an affiliate program transaction:

The customer>affiliate>Merchant
  

Amazon.com popularized this idea as an Internet marketing strategy. Amazon.com attracts affiliates to post links to individual electronics for sale on Amazon.com,  by promising them a percentage of the profits if someone clicks on the link and then purchases an electronic such as camera or other items. The affiliate helps make the sale, but Amazon.com does everything else: They take the order, collect the money and ship the book to the customer. With over 300,000 affiliate Web sites now participating, Amazon.com’s program is a resounding success.

Over the past few years, affiliate programs have grown in popularity, functioning as an affiliate is a good way to participate in e-commerce.

Another way to make money online is by Blogging. When you have a blog page set up with interesting content.
you can add ad networks such as google adsense any time someone click the ad you make money.

Writing an e-book you can make alot of money. Years back self-publishing world has exploded online to the point at which you don’t even have to run your own site in order to promote a book. Amazon, Barnes & Noble  are just a few of the sites on which you could self-publish today, with commission rates of around 69%  on every sale.

The number of eBooks on Amazon reached 9 million last year, and Amazon stated that eBooks are outselling hard backs 2 to 1, 62% of ebook sales fell into the Thriller and Mystery genre, so if you feel that you could pull this style of genre off then you will be in for a good chance of sales.

You can also make money by selling on Ebay. Do your research promote product the people want,you could make alot of money selling to customers around the world.