Paul Bradshaw has flagged up an interesting (and handy) feature on The Sun’s website through the Online Journalism blog, namely that the newspaper site offers users an RSS feed for stories relating to a search term.
After using the site’s search, the option to set up an RSS results feed can be found at the top of the results page.
As Paul points out, this is similar to the serviece offered by Google News, but a quick search suggests that this is not a feature on any of the other national newspaper websites in the UK.