From their site (Yahoo), not their problem but looks like they may help? (
http://uk.docs.yahoo.com/copyright.html)
Copyright Information
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personal, non-commercial use.
Any other use, including the reproduction, modification, distribution, transmission, republication, display or performance of the content on web sites is generally prohibited.
Infringement of Your Intellectual Property Rights
If you believe that your work has been copied in a way that constitutes copyright infringement, or your intellectual property rights have been otherwise violated, please provide Yahoo!'s Copyright Agent with the following information on this online form:
1. a description of the copyrighted work or other intellectual property that you claim has been infringed;
2. the nature of the authorisation or relationship where it is alleged that a third party authorises the infringement by another;
3. where the material that you claim is infringing is located on the site;
4. your full name, address, telephone number, and email address;
5. a statement by you that you have a good faith belief that the disputed use is not authorised by the copyright or intellectual property owner, its agent, or the law; AND
6. a statement by you, that the above information in your notice is accurate and that you are the copyright or intellectual property owner or authorised to act on the copyright or intellectual property owner's behalf.