Stock
I maintain a stock portfolio at the well known stock agency iStockphoto.com.
What is Stock?
Royalty-free stock photography of common landmarks, concepts, and events that can be used and reused for commercial design purposes. Book publishers, specialty publishers, magazines, advertising agencies, film makers, web designers, graphic artists, interior decor firms, corporate creative groups, and other entities utilize stock photography to fulfill the needs of their creative assignments.
My royalty-free stock photos are bought by designers all over the world for use in publications and websites.