Peer-to-peer lending ($1,440 a year): I've lost interest in P2P lending since returns started coming down. You would think that returns would start going up with a rise in interest rates, but I'm not really seeing this yet. Prosper missed its window for an initial public offering in 2015-16, and LendingClub is just chugging along. I hate it when people default on their debt obligations, which is why I haven't invested large sums of money in P2P. That said, I'm still earning a respectable 7% a year in P2P, which is much better than the stock market is doing so far in 2018!
Try going to our post: 20 Sites That Will Pay You to Read Books: https://wellkeptwallet.com/get-paid-to-read-books/. Even though editing is not what this post is about, there are several companies that might do book editing such as Kirkus: https://www.kirkusreviews.com/editing-services/get-started/marketing/?utm_source=google&utm_medium=cpc&utm_term=%2Bbook%20%2Bediting&utm_campaign=Editorial-ES I hope this helps and good luck on your book!