AdWords is an excellent way to display your products or services on Google's results pages for very specific queries. For instance, let's say someone searches for "best CrossFit gym in Austin". Sure, you could work on your SEO and hope to appear organically -- but you can also bid on the keyword and appear at the top of the page, enabling you to capture tons of high intent visitors.
Digital marketing is also referred to as 'online marketing', 'internet marketing' or 'web marketing'. The term digital marketing has grown in popularity over time. In the USA online marketing is still a popular term. In Italy, digital marketing is referred to as web marketing. Worldwide digital marketing has become the most common term, especially after the year 2013.
You get a free ebook, which includes the full course material (all our ebooks are in HTML and PDF-format, and more than 150-pages of course materials) + you get permission to take a test. If you pass the test, you will get notified via email. You can then login to your account and download your professional certification, which can be found in PDF-format.
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.