Some subjects are much better paid than others, so although you may love the idea of writing about travel (badly paid) a better bet would be a niche like finance (much higher rates of pay). Check out the Pro Blogger job board for high paid freelance writing jobs – other places to look might be Textbroker or you can look at the “gigs” section on Craigslist.
Focus on reviewing products that fall within your niche. Then, leveraging the rapport you have created with your audience and your stance as an expert, tell your readers why they would benefit from purchasing the product you are promoting. It is especially effective to compare this product to others in the same category. Most importantly, make sure you are generating detailed, articulate content to improve conversions.
Most of the blogger or site owner are wanted to earn money by their blog or paid domain. Maximum time people choose affiliate marketing because of this sector has lots of opportunity to earn. But all of them are not follow the appropriate way or may be they do not know the way to do affiliate marketing. In fact i want to say that reading is post they are gain some easy idea to do affiliate marketing and they will be able to earn like you.
In simple terms, affiliate marketing means selling another person’s or company’s products and services. It’s like a referral service. You set up a website or blog and join affiliate programs that are relevant to your audience. You can connect to these programs through affiliate networks that provide you with a link that you include on your site. When someone clicks the link and purchases the product or service you’re marketing, you receive a percentage of the sale proceeds as a commission. 
If you have a good idea for an app, and the skills to create it, then producing your own premium app can be profitable. However, with so many free apps available, it may be hard to convince people to pay. If you want to go down the premium app route, consider having a basic free version to encourage people to download the app in the first place. You can then provide the option of upgrading to a premium plan once users realize how useful the app is.
The concept of affiliate marketing on the Internet was conceived of, put into practice and patented by William J. Tobin, the founder of PC Flowers & Gifts. Launched on the Prodigy Network in 1989, PC Flowers & Gifts remained on the service until 1996. By 1993, PC Flowers & Gifts generated sales in excess of $6 million per year on the Prodigy service. In 1998, PC Flowers and Gifts developed the business model of paying a commission on sales to the Prodigy Network.[8][9]
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