Elance offers a wide array of technical, data entry, accounting, and other freelance and temp gigs. If you’re just looking for something short and sweet, log in, input and showcase your marketable skills, and begin searching through their job database, using any parameters you desire. Once you submit a bid, you’ll receive an acceptance or denial – you may get a few rejections, but don’t sweat it. Negotiate the terms of your bid, and get to work. You have money to make.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.