If you want to clear some space out in your house and have a big stack of books you’ve been holding onto for too long, you can make money selling your books and textbooks online. Stores like Half Priced Books and others will give you cents on the dollar for each of your current books while you can check what your book is worth by simply entering the ISBN number on Book Scouter. 

Insurance comparison sites are fulfilling a need. People don’t want to spend hours looking for insurance, and they don’t find it fun. If you’ve ever found anyone who enjoys this kind of activity, they could possibly be a little crazy. Both Compare The Market and Gocompare.com have not only made the tedious process of finding a policy infinitely faster, they’ve also made it fun. (Think of the free meerkats and the Gocompare man you love to hate.)
Drive for Uber or Lyft: If you're in a locale where you can find Uber or Lyft (or even one of the many competitors around the world such as China's Didi), you could easily make a respectable income. The hours are flexible and you can work as you see fit, making it perfect even if you currently have full-time employment but are looking to make some money on the side. 
It’s sometimes hard to comprehend just how much people love t-shirts. And with the right niche, marketing, and tools, you can create an online t-shirt business that makes you extra money online while you sleep. (Even Bloomberg and Forbes feature stories from entrepreneurs who've done just that.) Services like TeeSpring make it easier than ever to create a t-shirt drop-shipping business where they handle the sales, printing, and shipping, and you’re only responsible for design and marketing. For more tips, check out this simple guide to launching and marketing an online clothing store by my friends over at Selz.
I think content marketing is absolutely huge for affiliate’s, especially going into 2016, I think it will increasingly become something that will have to be adopted to gain domain trust, authority and good SERP rankings. Google loves quality content and if you want your website to stand the test of time, white-hat SEO is a must and content marketing is king!
×