- BigStockPhoto - www.bigstockphoto.com
- Can Stock Photo - www.canstockphoto.com
- Dreamstime - www.dreamstime.com
- Fotolia - www.fotolia.com
- Foto Search - www.fotosearch.com
- Getty Images - www.gettyimages.com
- iStockphoto - www.istockphoto.com
- Shutterstock - www.shutterstock.com
- GoGraph - www.gograph.com