It’s something akin to picking stocks. You want to buy undervalued domains, and sell them later on at a higher price. For example, you can pick a domain that is out of favor, but could be related to some future event. So if you decide that the stock market is likely to crash in the future, you can buy a domain that includes the words stock market crash during a rising market, and then sell it in a falling market.
Websites like Survey Junkie and Swag Bucks allow average everyday individuals to get paid for sharing their thoughts online. In fact, there are an endless stream of sites promising individuals cash for completing surveys online, some of which are more reputable than others. Be sure to do your due diligence before enrolling in any of these programs.
People are turning to audio and visuals when it comes to technical subjects. However, you should consider doing an ebook first and turning it into an audiobook through a resource like Audible's ACX platform. You can hire a producer either through a royalty share program, so you don't have to shell out upfront cash, or you can do a pay-per-hour hire as well.
Double check yourself, before you double wreck yourself. Make sure everything you send to a company, whether a résumé, an email or a portfolio, is good to go. Double check your grammar and wording, and for God’s sake use spell check! This is especially important when it comes to the company’s name. Don’t spell their name wrong and be sure to type it how they type it (e.g. Problogger, not Pro Blogger).
Can you recognize a good deal when you see one? Then, consider buying merchandise to resell on eBay. Or, try other sites like Amazon. Garage sales and thrift stores are full of obscure items. Often, people don’t know how valuable they are. Therefore, they sell them for less than what they’re worth. As a result, you can buy them for a discount and make a large profit.
Banner advertising, when set up using a system like I presently use, can be very hands off – in fact for me it’s entirely passive – assuming there is an audience that the sponsors benefit from advertising to. It’s difficult to make loads and loads of money just from banners unless you have significant traffic, but it is easy enough to make some money from it and once you do, it generally proves very reliable unless you stop updating your website.
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.