photodune is great resource if you are looking for some Royalty free stock photos. The site have really good collection of Hi Resolution photos which is nicely categorized in segments like, Business, Architecture, Food, Sports, and lot more. You can also search for an image or photograph by different tags, colors, orientation and image sizes.
The price of photographs start with as low as $1 and you also get some freebies if you become a member.
Browse and see their collections on the photodune site.
