In general, use unordered lists for:
- Hotlists and other link collections
 - Short, nonsequenced groups of text
 - Emphasizing the high points of a presentation
 
In general, use ordered lists for:
- Tables of content
 - Instruction sequences
 - Sets of sequential sections of text
 - Assigning numbers to short phrases that can be referenced
elsewhere
 
In general, use definition lists for:
- Glossaries
 - Custom bullets (make the item after the <dt>
tag an icon-sized bullet image)
 - Any list of name/value pairs