just creating the saved web content is the first step, but there are many different things you can do once you've got it.
citing saved web sources: the wayback machine generates durable urls that you can include in your citations, linking to the information as it existed the day you viewed it.
saving, sharing, and uploading content: archiveweb.page allows you to export web contents as a .warc file, a format designed for working with complex website information. this file can then be uploaded to secure storage, or shared with others.
as evidence: saving web content as a .warc which can then be replayed by others is a more reliable form of preserving evidence than taking a screenshot.
as data: web content and social media content can be turned into a dataset for analysis. see the archives unleashed project for tools.