If you're serious about making money online, start a blog. Blogging is one of the easiest and most sustainable income sources. As long as the blog is setup the right way, in the right niche, with the right content targeted at the right audience, and the offer is complementary to the content, you could make a tremendous amount of passive income from a blog.
Do you have a room that has its own bathroom and is private from the rest of the living space? Are you near attractions such as a tourist area, sports stadium or venue for a large annual event? Or is your home in the country with spring peepers, summer crickets and crisp fall nights that could give a city-dweller a weekend of peaceful living? Say you can rent the room for $150 a night for Friday and Saturday nights 48 weeks a year--that's $14,400 in revenue! Utilize what you have and create a unique experience.
Digital marketing is defined by the use of numerous digital tactics and channels to connect with customers where they spend much of their time: online. From the website itself to a business's online branding assets -- digital advertising, email marketing, online brochures, and beyond -- there's a spectrum of tactics that fall under the umbrella of "digital marketing."