I agree mostly with the real estate advice. I’m looking for ways to take advantage of the condo I own to get up the rent from ~$0.90/ft to the $1.2-1.5/ft that seems more like the range in the same area. I’d have to put in a bit of capital (probably 10k on the low end for just the basics up to 40k if I wanted to remodel the kitchen and 2 bathrooms up to par with the area), so the return is likely there if those upgrades warrant $1.30/ft (given the unit is larger than most 2br/2ba in the area).
Have you always wanted to own your own business? You could start a side business while you work a full-time or part-time job. For example, if you're a graphic or web designer, you could start your own graphic or web design business on the side. If you like to make jewelry, you could sell at craft fairs and online. Starting a business may be daunting, but if you believe in you and your work, you could earn a decent living, maybe even quit your day job. Search out those who are doing what you want to do and interview them. Find out the mistakes they made and ask for guidance.
Similiar to Adsense, Media.net powers the Yahoo! Bing Network Contextual Ads and is probably the second largest contextual advertising company in the world. I've been running some Media.net ads for a few months and the income was very similiar to adsense. Bear in mind that their approval process is a bit more extensive than Google AdSense. -One has to get a certain number of page views monthly to get an account with them.
A REIT is a company that owns, operates or finances real estate and allows anyone to invest in portfolios of real estate assets, the same way as stocks: you can purchase individual stock or exchange-traded fund (ETF). You can then earn a share of the income produced through the real estate investment without having to own, manage or finance a property.
If you have specialized knowledge in a certain topic, you can put together an online course to teach others. For example, if you have experience in real estate investing, you can create an online course “Real Estate Investing 101”. The benefit of an online course is that once you create the course material, you can sell it to as many people as you want.