Images of fairies can be found both in print and online. The Internet is the fastest way to search for a variety of images; doing an image search for "fairies" on any major search engine is a great place to start.
The Fairy Pictures Gallery is a website that is devoted to fairy images. There are also collections of fairy images on image hosting sites such as Photobucket. For both images and information about fairies, search for Theresa Banes' "Encyclopedia of Fairies in World Folklore and Mythology," as well as "Fairies: The Myths, Legends, & Lore," which is published by Adams Media Corp.