Where can you find some photos without paying an arm and a leg? Here are some helpful sites to try for inspiration.
Flickr Creative Commons
StockXchng

FreeFoto.com

Paid Photos
The following sites require some payment, but most images for the web are nominal (less than $1). The sites also offer some free photos as well.
iStockPhoto.com

Fotolia.com

DreamsTime.com

Other Free Photo Links
Wikipedia:Public domain image resources
NASA Images

NASA Multimedia

Visible Earth Images from NASA
