These documents are a useful collection of "How do I do x?" guides:
Basic Confluence Operations
- How do I upgrade to a new version of Confluence?
- How do I write Confluence pages in HTML?
- How do I delete unwanted "incoming links" from pages?
- How do I define structured content templates for pages?
Confluence and JIRA
- How can I best use Confluence and JIRA together?
- How do I make Confluence use my existing JIRA user database?
- How do I add a Confluence server to my existing JIRA standalone installation?