Website Development Help – need help setting up your theme? I’ve been working with the same 2 developers for 3+ years. To hire them, sign up for a Freelancer account, post your job (WordPress theme installation) then invite user i333 or bdkamol to your project. If you want, contact me and I will introduce you to them via email. Both are great developers with reasonable rates, speak fluent English, and I outsource all my programming work to them.
But don't make the mistake of thinking this will be a passive source of income—you're on call whenever you have a guest and you'll always need to keep the place clean for incoming visitors. On top of just renting on Airbnb, consider offering your guests paid add-ons, like Lauren Gheysens', Royal Day Out in London, England—where she gives visitors a local's only tour of the city, complete with bespoke 18th century costumes.
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.