If you click on this link: http://www.telegraph.co.uk/technology/amazon/7929091/Amazon-opens-UK-Kindle-store.html you'll read an article on the UK's Telegraph newspaper about the new Kindle store opening in the UK.
Scroll down a little and you'll see a link at the bottom of the article which says Buy the Amazon Kindle from Amazon.co.uk.
If you look closely, the link url looks like this: http://www.amazon.co.uk/gp/product/B002Y27P46?ie=UTF8&tag=telegraphcouk-21&linkCode=as2&camp=1634&creative=19450&creativeASIN=B002Y27P46.
I don't know ... but does the "tag-telecgraphcouk-21" mean that the if I buy a kindle (and maybe even a kindle book, or maybe even any product) after visiting that page .... does the Telegraph get a commission?
If they do then I'm guessing they've just crossed an awkward commercial / editorial boundary.