Everyone knows about iStockPhoto, and everyone knows how the price of credits keeps rising. But have you tried BigStockPhoto? Currently they are running a promotional coupon that lets new or existing customers claim 5 free credits. Just use code 5FGM10 when you purchase new credits. Work fine for me as of 02/10/2010.
This was very timely, as I needed to buy an image for an marketing email I will shortly be sending out to Bath based design agencies, advertising my services as a freelance web developer. So if you get my “Freelance code monkey for hire” email, you’ll know where the monkey picture came from!