Codeacademy offers free, interactive coding classes that take you from lesson one to building a fully-functioning website. The courses we've highlighted below are just a few of the courses; Codeacademy offers many more, depending on your organization's needs. Codeacademy classes feature lectures and a workspace in the same browser window so you can see the effect of your work live, as it's created.
“Marketing in a Digital World” is one of the most popular free marketing courses on Coursera – with more then 100,000 students enrolled to this date. Taught by a professor at the University of Illinois, this class focuses on the transformation of marketing strategies an tactics into a digital-first world. Specifically, how technology is putting the power of marketing into the hands of the consumer.

Individual customers and businesses can purchase your stock images for their websites and marketing materials. Simple stock photos, like businessmen shaking hands or a woman riding in a car, are sought after by many companies. To be most successful, you’ll want to upload photos monthly to consistently grow your portfolio. You’ll generate a commission each time one of your photos is downloaded.

As for what should your sandbox be, you have a few options. The easiest is to start a blog. That’s what this site was started as: a sandbox for learning content marketing, and it only became my full-time job on accident. A blog is a perfect sandbox for learning digital marketing since you can test almost all of the tactics on it, it’s low-cost, and you’ll improve your writing in the process.

This is a venture that is growing rapidly. You can create videos in just about any area that you like — music, tutorials, opinions, comedy, movie reviews — anything you want . . . then put them on YouTube. You can then attach Google AdSense to the videos, which will overlay your videos with automatic ads. When viewers click on those ads, you will earn money from AdSense.
The appeal of these passive income sources is that you can diversify across many small investments, rather than in a handful of large ones. When you invest directly in real estate, you have to commit a lot of capital to individual projects. When you invest in these crowdfunded investments, you can spread your money across many uncorrelated real estate ventures so individual investments don't cause significant issues.
Teachable and Udemy are two of many, but these are the most prevalent, and they’re both intuitive and user-friendly. With Teachable, you have more control over your pricing and the look and feel of your course, but you don’t get a built-in audience. Instead you have to do all the marketing yourself. Udemy has a built-in base of students, but you don’t have as much control and they take more of your revenue.