For many people, passive income is a necessary thing. As the economic situation is not doing that good, people have to invest in different income sources to get on with their life. Here are some safe and small investment ideas for generating passive income.

Creating specialized courses
If you are professional at something and have confidence that you can teach people, open an online course for that area. This will open up a source when people are interested to learn that particular thing.

Write E-Book
Writing an E-book can be a good opportunity to open up an additional income source. If you are passionate about any topic and want to spread that among people, try writing a book and opening it in the market.
Rental market
Investing in the rental business is always a great inside for passive income. You can start the business from your own space if you have some spare room. Also, if the space allows, opening the space for commercial business is a good idea too.

Affiliated marketing
This is one of the easiest ways of making passive income. Share the links of media influencers or stars on various websites with people. This way you would get a share of the purchase every fan made that was inspired by your link.