Gather baseline data about your private site. This will help you measure whether making content public was successful, and quantifying the results of that success in ways that make sense for you and your stakeholders.
Create a Communications Plan to let your end users know once your content is accessible without a login.
Promote the change
Marketing site
Blog post
Social media announcement
Review content that will be made public
Review all Categories, and ensure appropriate sub-pages are also intended for public consumption.
Consider how you want to handle private content within a public page (for example, a note just for employees that you do not want customers to see).
For small blocks of text, use conditional content to make certain page content viewable only to specified users.
For larger blocks of text, or long articles, it can make sense to move the content to a separate page. For example, you could create a Guide page that is set to Private, and put internal-only documentation there.
Review content that will not be made public
Review sections of the site not intended for public consumption.