When you publish your Articulate content for web, you'll need a web server or a web hosting service to distribute your content online. If you don't have access to a web server, you can sign up for a free Amazon S3 account. Then simply upload your published output to your account, and give your users the link to your online course.
Amazon S3 offers free hosting service with generous usage limits. However, if you go over these limits, you'll be charged a graduated fee.
To learn more about Amazon S3 or to sign up, click here.
Dropbox is another great and free option: