[MoodsR4Cattle]

I assume you're looking for Free photos:
http://www.morguefile.com/
http://www.freephotosbank.com/index.php
http://www.creatingonline.com/stock_photos/index.php

But for a buck or two you can get some decent images at these sites:
http://www.bigstockphoto.com/
http://www.dreamstime.com/index.php
http://www.stockxpert.com/
http://www.fotolia.com/

Their are restrictions on some, you'd have to read through their policies.