The URL of all content will come from the Title so best to be succinct in choosing the title of your article. Forum pages will be /forum/title in this instance http://www.iffa.org.au/forum/content-types-url-aliases - other content types to be discussed oh event will be /event/title??

Current Content Types:

Event - ok
Page - ok
Story - What is its purpose, book can do a much better job imho
Nursery - needs work
Poll - Does it ever get used?

Proposed Content Types:

Flora page --- different name?
Fauna page? --- as above.