Photos may be used for FREE as web banners and website backgrounds providing a link back to my site is included on your site, preferably as a credit in the footer. (see Royalty Free Licensing page)
The credit text is up to you, but this link must be included as is.....
<a href="http://www.cool-desktop-backgrounds.com">Cool Scifi Desktop Backgrounds</a>
Terms and Conditions and Copyright info.
All the desktop backgrounds, wallpapers, images and photographs on this site are copyright Dave Massey. The images can be used as desktop backgrounds on personal computers free of charge. No photograph may be reproduced, copied, stored, manipulated or used whole or in part of a derivative work without the written permission of the author. Images cannot be used on other websites as downloadable desktop wallpapers or background. Any other use is prohibited. For any other use of the images please visit the image licensing page for more information.