Types:
INDEX - list with links to all the pages from that category
HUB - Master list with every entry from that category (mostly applied to task like items)
Tasks
Spreadsheets
Projects
META - Topic ubergreifend - Page that contains multiple topics, put together
REF - References - Pages where you can look up valuable information (=refer to) like dictionaries, wikis
preferably things that you often need, but don't know them by heart