My recommendation is that you not use the photos without permission from the copyright holder. Generally, just because you can find photos on the web, it does not mean the photos are free to use. Also, just because you crop away some of the photos, it does not mean you are free to use the cropped photos. Though it may be difficult or even impossible to find the copyright holder, if there is one, people get into trouble by using photos and then the copyright holder (who might be the owner of thousands of images) will search the web for unauthorized users and seek to extract payment.
Answered on Feb 17th, 2012 at 9:23 PM