Get a registered trademark.
Then, rather than your site having cut-and-paste-able text, your text
could be incorporated into an image that contains a pale background of
your logo/trademark - so the whole thing is a jpeg or gif image.
If your trademark is registered with companies house, you may then
have a straightforward case against rip-off merchants (i.e. by
stealing even part of your trademark, they suggest some association
with your business - so you can claim doing so could harm your
Someone else may be able to give a proper explanation, but I believe
the law is clearer-cut in relation to a registered trademark
(otherwise it's only passing off, and more difficult to prove).
- there's a big feature right on the front
page as the law changed to improve trademark protection on Oct 1st.
Explanation of the protection a registered trade mark gives you here:
(once the front page link disappers, see