The site has a collection of clipart (simple line-drawings), particularly useful to foreign language and ELL/ESL teachers. The drawings are designed to be culturally and linguistically neutral, as much as possible. They are in GIF format. Categories include verbs, adjectives, buildings and places, sports, things and events, time, vehicles, medical, and pronouns.
You can use these drawings with and without modification for free so long as they are used for not-for-profit educational purposes. Please acknowledge the source when used.