If your content refers to what people can see (to the right you can see a...) you should build your own landing pages. If your content is written in a general, encyclopedic style, you should consider using wikipedia.org in conjuction with qrpedia.org.
- Organize your content: A good text should have a heading, teaser, and a body with subheadings, just like an ordinary Internet text. Don't forget to provide useful links at the bottom
- Text first: Multimedia is nice (e.g. video, sound), but think about it as additional information linked from your text
- Refer to what people can see: You know exactly where your user is standing. Use it! ("You are now standing in front of...to the right you can see a...")