Revisions are used to keep track of changes made to content - this allows you to go back in time and to revert the node back to a previous version if needed.
Drupal’s taxonomy management allows you to sort, organise, and label your content. The terms in a taxonomy can be used, for example, as filters for your resource library.
As your website grows, it's important to have a way to keep track of all the content so you can identify if it needs updating or archiving. The Sector Content Audit add-on enables you to complete a content audit within your content management system.
You don't need to constantly churn out content in order to have a blog on your website - as long as you have something useful and interesting to say, and can commit to a regular content schedule, it's a worthwhile venture.