You can sell your ebooks through Amazon's Kindle program or Apple's iTunes Connect, which gives you access to a large majority of the digital-book reading market and the barriers for entry are incredibly low. You don't need to invest lots of money to make this happen, but you do need to invest lots of time, not only in writing the ebooks, but in marketing them as well.
Take good pictures. Some of the options below don’t require you to actually take the picture and sell the product, but for the ones that do, make sure you take a clear picture that makes your product stand out from the others. If you’re going to be taking a lot of pictures, set up a small “studio-like” area in your home with a backdrop and proper lighting to really make your pictures come across as professional. And of course, you’ll want a good camera too.
Make a point to test products before you start to promote them. I usually test Clickbank products on my social networks first to see if it has a positive or negative impact on individuals. You can also email a few friends or even get friends and family to give you their honest opinion before you implement your marketing strategy. Remember everyone is different and what you might see as a great product might just be a lousy one for others.
Price vs quality and quantity – This is a tricky one, some programs might seem expensive, but they do offer quite a bit. I usually recommend the ones that are an “All-in-One”. Meaning, you don’t need to join additional programs to complete a specific marketing strategy. Price might seem steep in some instances, but if you add everything up, you actually save a lot. Hosting, builders, marketing tools, SEO tools and so forth can add up if purchased separately.
If you’re willing to take on some risk and have the heart of a true hustler, you can make extra money online doing commission-only sales for startups and other businesses. While you won’t be getting a regular salary, with the right sales strategies and skills as an inside sales rep, you can make decent money for each sale you bring in. And because you’ll most likely be working with startups, if you can negotiate a little equity you could profit big time if you're pitching a solid product and the startup succeeds.