Cafe Press: This website allows you to create digital designs that can then be sold on the platform. You'll earn a commission for everything that sells and you'll never have to deal with logistics like printing, warehousing and customer service. If you have some graphic design skills, then this is a great potential source for your web-based income. 

This is the best way to boost your earnings, as you have the most leverage at the moment that a company wants you but isn’t sure whether it can get you. Use that to your advantage in negotiations. Another benefit of getting a bump up when you switch jobs is that the percentage boost will be baked into all your future raises, elevating your lifetime earnings. Here’s how to negotiate your salary.
If you actually enjoy putting together Ikea furniture or standing in long lines, you may be cut out for doing tasks for others. Websites like TaskRabbit can connect you with people who need help with a variety of things. Moving, cleaning, delivery and being a handyman have the “highest earning potential,” according to the company. Read about how to get started on TaskRabbit.
While I think that your initial response to Phillip’s suggestion about design was a little too strong, Dasjung, I’ve got to chime in here and observe that Phil, ThunderCock and Dumbass, by resorting to name calling and simplistic reasoning, come across as very lacking in both decorum and sensitivity.  If a guy wants to expect, even demand, high quality in his field of choice, I beleive he has a right, if not a responsibility, to do so!  Also, Dumbass, be careful who you call Dumbass. You just show YOUR true colors by doing so. 
I really like the idea of writing poorly written ads. It seem like it can be easy and you can make a small profit. I know that use to work at a school and we got our extra money from writing grants. People can write grants to start a business so I am in the process of trying to write my own grant to start a community program for teens. its a litte extra money and I still get to do what I love. If you have any kind of hobby you can prob. turn that into some income if you can get creative. Good luck
Ebates: This app offers a simple way to make money online by buying whatever you're already buying and then getting a cash-back reward. With eBates, there is no scanning receipts. Simply click a link in the app and buy it from the store. You'll automatically be credited with your cash rewards upon purchase along with receiving an email confirmation.  
Love to shop? Well then working as an Instacart shopper and driver may be a great fit for you. Instacart defines itself as a service that “connects customers with shoppers to deliver fresh groceries to their door.” Like other delivery services, Instacart allows their shoppers to set their own hours, which could make it a great fit for students or anyone with a busy schedule.

More than half a billion products are sold on Amazon every month, making it an incredible opportunity to make money online. But, like everything else that involves making money online, you have to do quite a bit of work to earn it. One option on Amazon is to find products that are already made and buy and sell them at a discount. For example, you could research generic products such as clocks, keychains and mugs to attach to your brand.
6. IZEA – IZEA works in addition to a blog or on its own. You get paid to blog, tweet, take photos and take videos. The pay is mostly based on your following, so if you want to make money with your tweets, you’ll need to grow you Twitter following.  Likewise, if you want to make money with blogs, you’ll need substantial blog traffic (more on blogging below).
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