White Wolf:Don't use external links where we'll want WW Wiki links
From the White Wolf Wiki, the most complete White Wolf reference
The point of a wikiwiki is to build the web by creating an ever-expanding network of interlinked articles. Don't create links to external pages as part of the article text — more than likely, we'll want to have an article on that subject right here on the White Wolf Wiki! Links to nonexistent articles are perfectly all right — in fact, they're encouraged (under the appropriate circumstances, of course).
For example, don't write something like this: "The Bruja bloodline is a part of the Gangrel clan" — note the external link to another page. Certainly, there are plenty of websites which are excellent resources for many aspects of White Wolf fandom. Where would we put the link to WW Wiki's article on the Gangrel clan?
Instead, external links should go in a separate section of the article (at the bottom of the page), where these links can be listed for further reading.