Photo and illustration sources

These sites might be helpful for folks in need of digital art.

The New York Public Library Digital Gallery contains a wealth of historical art and illustration. Most images are public domain, but the Library does charge a usage fee to license an image for commercial use. A great source of inspiration for patterns and antique designs.

iStockphoto, recently purchased by Getty Images, is an inexpensive source of royalty free stock photography and illustration. Prices range from $1-$15 (as opposed to $400 for a royalty-free image on Getty's site). Let's hope they stay this cheap.

I haven't used these before, but they're worth looking into: Fotolia, Big Stock Photo, and StockXPert.