That URLs should be PERMANENT, that all content should be uniquely ADDRESSABLE, that multiple routes to content make everything DISCOVERABLE, and that everything should be as OPEN as possible.
Looks like he's promoting Jeff Jarvis' model of searchability, Search Engine Optimization, and making the site as easy to search, link, and share as possible.
This philosophy should guide all Internet Development, everywhere. Particularly for information rich sites like news organizations. These principles maximize your chances of landed on the coveted first page of search engine results.
Read the whole piece here.