Writing is a skill that all the above needs just add is communication, and professionalism. Then there are the bloggers that come together that more or less form done type of publication. After all, what’s a blog anyway other than freelance writing being monetized in the end by most who are successful, take bloggers together of a same interest and you have a publication – and goodness knows many bloggers could use editors.
If maintaining a blog is difficult for you but you still want to indulge your passion for writing, you can jot down articles for other blogs or sites such as Weblogs, Helium or PayPerPost. Writing an e-book can also be a good option. E-books are investment free, with no cost for printing and shipping. If you have a strong command over languages, you can become a copy editor, where Webmasters will pay you to read articles and correct grammatical errors, sentence fragments, etc.
Prior to that group, they had an online community for teachers looking for lesson plans. That probably sounds pretty random, but it's crazy the type of communities you can build and rally people around. If it's something that you're passionate about yourself and you want to connect with others that have that same passion, then an online community is something you should definitely consider.
In most cases I prefer something that is more potentially passive than potentially scalable. Obviously it’s great to have everything, but given the choice I prefer income streams that just work and can be automated so you can do other things. You have to be careful to manage your desire to scale something with your desire to make it passive. Sometimes less is more because less gives you freedom.
Using a food delivery service can’t necessarily earn you money, but it can help you save you money if you constantly find yourself throwing out half the food you buy. Food delivery services send a box of food every week with new, sometimes unique vegetables, meat, fruit, and so on. If you don’t have time to shop and want simple meal-prep that leads to a good meal, a food subscription service may be perfect for you.