I allow some of my series of images to be used on a free basis in return for an attribution link back to my web site, I do this as it provides useful advertising for my business:
These images are offered under a Creative Commons Attribution-ShareAlike license and if you want to use the images for free it is very important you follow the terms of the licence. Underneath each image are the details needed to fulfill the conditions of the license and also a link to the license so you can read for yourself the terms of the license.
Should you not wish to follow the terms of the license then please purchase a rights managed license through this site which does not require any attributions.
The images I offer on a Creative Commons Attribution-ShareAlike license can be found at;