To kick off this back-to-school season, I present these free clipart sites. But first a couple of ground rules. One, please respect common clipart etiquette and do not hot link directly to these images. Instead, always download images to your computer and then upload them to your own web server or free image hosting account. Two, although I have included a brief summary of each site’s terms of service, be sure to look at each one more closely because it’s impossible for me to accurately cover all the details in this short space.