Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online.
Long-Tail Keywords – specific keywords usually with 3-7 individual words in a phrase. They are highly targeted and MUCH easier to rank for than broad keywords (all mine are long-tail). The lower your domain authority (check using OSE), the less competitive (more long-tail) your keywords should be. If you can get more specific and the keyword still shows up in Google Autocomplete, Moz Keyword Explorer and other keyword tools… choose the SPECIFIC one.
Amazon Associates is one of the first set of affiliate marketing programs which was launched in 1996. This program has a track record of over 12 years of developing solutions for helping website owners, developers and sellers on Amazon make money by advertising tons of used and new products from amazon.com and its subsidiaries like SmallParts.com and Endless.com.
It doesn’t pay much, but if you’re a healthy person and want to make a bit of extra money online, the AchieveMint app will reward you for doing things like walking, tracking your food, or taking health surveys. AchieveMint works by connecting to fitness apps you might already be using like Fitbit, RunKeeper, Healthkit, and MyFitnessPal and then giving you points for certain actions. For every 10,000 points, you earn $10 with no limit on your earnings.
Cafe Press: This website allows you to create digital designs that can then be sold on the platform. You'll earn a commission for everything that sells and you'll never have to deal with logistics like printing, warehousing and customer service. If you have some graphic design skills, then this is a great potential source for your web-based income.