Re: Feature Request: Player-Customized Home Page
Unless they've added an extension to do so, and I can't imagine that they have because it opens up a huge security hole, you can't transclude data from another site into a wiki page.
You can certainly add links to your own page, or any other, to an outside site, but it won't "grab" the data.
I'm not sure if that answers your question or not.
Stip - Minstrel on Windfola, Officer of The Evolution of Light
LOTRO Quest/Crafting Database and Wiki. Easy to read quest writeups with screenshots: