Jason Schneider.com Unique illustrations featured in eight categories: Business, Entertainment, Finance, Holidays, Issues, Leisure, Logos, The Web, and Travel.

Doug Struthers Realistic medical illustrations including: aids, allergies, arteries, blood cells, brains, cancers, dna, eyes, hearts, lungs, skeletons, tumors, and viruses. all medical illustration can be purchased as posters.

Illustration Works Royalty-free stock illustrations from an agency representing about 100 illustrators.

Dave Urban Art Small collection of colorful commercial illustrations. Categories include: a day at the beach, head trip, joys of motherhood, and soccer practice. Call or email for prices.

Vizcarra Personal collection of caricature illustrations. Categories include Hollywood celebrities, politics, musicians, and historic people. Contact the artist for use of images.

Laughing-Stock Online stock art agency providing a wide variety of rights-managed stock illustration.

Mike Lester Humorous illustrations, comics, and editorial cartoons by Mike Lester.

PhotoSpin Subscription based royalty-free illustrations and photos. Pay annually and get unlimited downloads of over 100,000 images.

RJG Toons Computer & business cartoons & illustrations by Randy Glasbergen. Offering custom images for newsletters, presentations, advertising, etc.

Veer Offering rights-managed and royalty-free illustrations and typefaces.

Stephanie Carter Personal collection of Stock clip art illustration by Stephanie Carter.

Magixl Good source for celebrity caricature clip art. All images are free for personal use and a $20.00 fee applies for commercial use.

John Dykes Personal collection of conceptual stock illustrations for editorial, corporate and advertising use. Searchable by keyword. Lightbox provided.

RMK Scientific illustrations available for licensing. Specializing in medical, biological, molecular, virus, cellular, and astronomical imagery.

Photo Researchers stock photography and illustration agency specializing in dinosaurs and other prehistoric reptiles.