I follow several other technology blogs such as "Free Technology for Teachers", "iLearnTechnology", and "Teacher Gone Digital". While reading iLearnTechnology, I came across this wonderful video about internet safety. This is a fabulous resource to help young students begin to learn safety rules for the Internet.
Use it at the beginning of the year in the Computer Lab or at the beginning of a WebQuest project. Next year, I plan to have all of my students view this video before they ever get online.