Are there Risks in Downloading Materials from the Internet?
You should proceed with great caution when downloading and using digital materials from the Internet for incorporation into multimedia presentations. There is often no way to determine whether displayed material is in the public domain or protected by copyright. Moreover, there is no way of confirming that permission was obtained prior to posting a work on the web site. Indeed, given the present confusion about freedom to copy works on the Internet, it is probably safer to assume that permission from the copyright owner is necessary before reproducing materials from an Internet web site.