If you are good at writing notes and attended all lectures, you can sell your asserts to less committed students via NoteSale. You can create a listing for free, but the site will take a per cent from each of your sales. Typed notes in PDF/Text format sell best, yet it’s worth trying with scanned handwritten notes too if you have nice clear writing.
Krystal, I understand what you are saying, but I have made money selling pictures online, and I am no pro. I can get great pictures of wildlife, tropical landscapes, and many things that other photographers may not be able to get. Should I not do this, so that other photographers can? I am also trying to pay bills and run a household. It seems that raising prices could eliminate some of your future clients. I occasionally get calls because someone can’t or won’t pay $250-$500 for someone to take pictures of their family on the beach. I also give them the CD of all of their photo’s, which many photographers won’t do.

As someone who's acutely interested in passive income and online marketing, I speak to a great deal of people who are successful, but rarely do I personally come across someone who's had such an immensely interesting journey that it screams attention. While success is certainly alluring, most people don't have the wherewithal to suffer through such life-altering and suffocating failures, and to not only reemerge on the shores of hope, but to create a life of sheer and utter abundance in the process.
You could try advertising more, for example, by putting up signs around the neighborhood, posting about it on social media, or having people you know spread the word. You could also try doing it in a different neighborhood that might have friendlier people, or do it in a time and place where there's likely to be a lot of people walking around the area (e.g., near a church before the end of a mass).
This may include mere copy-pasting, minor text editing, data categorisation, translations and staff alike. You can work a few hours a day and earn some hundred bucks by the end of the month. Obviously, the total payout depends on how fast/good you are. Sign up to ClickWorker if you can tolerate handling some routine tasks in exchange for cash injections.
Now you’ve got many different options to start earning online. If you saw something that really interests you, try it out and learn more about it. If you’re really wanting to make a full-time income online, you need to be dedicated to learning how to do what you want to do. There are tons of free resources out there. You just have to search for them!