If you are very detailed, you can apply to review ads and search results on a part-time basis. There are several different companies that hire for these positions. The pay can range from $13 per hour to $15 per hour, depending on the company you work for. I did this for one year in 2013 at ZeroChaos and I loved it. Take a look at the openings available at these companies.
Appen Global https://join.appen.com/