Now that our local application is complete, I want to do something that we haven't really done—make our application live on the web. There are a few different ways you can do it, a few different services. I want to use Heroku, which is an application-hosting provider, among other things, and it's used commonly for Node.js as well as Ruby on Rails, Python, and a whole bunch of other programming languages.

Now, there are a few different packages. We want the free package, which is mostly used for development, maybe some small production apps. But you can see, if we go to Pricing and go down, you can see that packages for enterprise-level businesses can go up to $30,000. So, it can be very expensive; but that's if you have a site like Instagram or Twitter where there's just loads of data. This is an excellent solution, because it's really easy to scale.

First, sign up! I already have an account so I'll not go through that here, but fill in your information. Once you...