This can include advertising, but many businesses also need help just filling up their social media profiles with relevant (and consistent) content. If you enjoy learning about social media and want to take things a step further and make extra money, social media management is a great option. If you’re good at it, it can also open up a lot of doors for you down the road. This is a great article from Small Biz Trends on How to Start Your Own Social Media Business.
eBay is, of course, the biggest and most popular auction and shopping site out there. You pay a small insertion fee to list your product (starting from 10 cents) and a small portion of the selling price (10%) if your item sells. Currently, insertion fees for your first 50 listings per calendar month are free. Also, if you are planning to sell on regular basis, you may want to consider setting up an Ebay store. Among other things, this will allow you to list your products at reduced rates.