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.
If you love to travel and find yourself randomly searching for airfare sales or browsing Lonely Planet, why not carve out a niche for yourself as a private travel agent? My friend, Mark Jackson did just that, making extra money online with his travel consulting side business. Start with word of mouth recommendations from friends who know they can count on you for the cheapest flights, and then move on and create a Facebook or LinkedIn group to invite people who want to stay on top of the latest deals. Eventually you could spin this into a full-time consultancy teaching people how to make their dream trip a reality.
Money makes the world go around and it is something you always want to have more of. Whether you are struggling to pay bills, want to save up for something special, or just want to have some extra fun money available, you do not need to go out and look for another job outside of the home to earn more. We live in an internet- and computer-based society, and that means there are more ways than ever to earn money online and from the comfort of your home. Work at home jobs are not just limited to customer service anymore.