If you have a background in a specific field, you may find there is a demand for writing industry papers in your area of expertise. For example, there are often adverts for doctors, lawyers, nutritionists, and business experts from particular niches, to write white papers on different subject areas. These are well paid jobs that you will need to stake your reputation on, but that can often be worked on from the comfort of your own home.
I've been using Stripe for several years now. It has totally revolutionized how businesses accept online payments by making credit card acceptance safer, cheaper, and simpler than ever. They have a flat rate of 2.9% + $0.30 per transaction, a competitive rate in an industry that is largely unregulated and notorious for charging all sorts of hidden fees to businesses. Beyond that, it's one of the most well documented and widely used payment processors in use by digital entrepreneurs.
Research selling prices of items similar to yours. Look up completed sales or current listings of items similar to yours. Find the high- and low-end prices, and price your object around the median price level. If you want your item to sell quickly, price it at the low end. The condition of the item also affects the price. Items in poorer condition should be priced at the lower end. Also, consider how many listings there already are of items similar to yours. If many similar items will be competing with yours, you may have to set the price lower to get the sale.
While these models have diminished in mature e-commerce and online advertising markets they are still prevalent in some more nascent industries. China is one example where Affiliate Marketing does not overtly resemble the same model in the West. With many affiliates being paid a flat "Cost Per Day" with some networks offering Cost Per Click or CPM.
Weekplan is a weekly planner app with more 300,000 users. It's based on Dr. Stephen Covey’s four quadrant model. Most time management systems are good at helping store the tasks you need to do, but Weekplan is different—it helps you not just prioritize your tasks but also motivates you to do these tasks through daily reminders and notifications. It also allows you to mark tasks as important or urgent, so you can view your priority list. By the end of the week, you can clearly see where you spent most of your time. It even provides quadrant view, goals, a journal, reminders and integration with Google Calendar.
However, if you're looking for realistic ways you can start earning money online now, then it really truly does boil down to seven paths you can take towards profit. Some will provide you with immediate results, helping you to address your basic monthly necessities such as rent, utilities and groceries, while others have the potential to transform your life by revolutionizing your finances in the long term.