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Free Photographs
Finding good images that you can use without breaching copyright can be difficult. Try searching the web for Creative Commons images as these special licences mean you can use them for free, by just accrediting the owner. Flickr is a good site to find a large number of Creative Commons images that are not run of the mill.
You may also want to look on these websites for photographs.
www.dreamstime.com/free-photos
http://office.microsoft.com/en-GB/images/
http://commons.wikimedia.org/wiki/Main_Page