https://www.digitalpassport.org/ – Common Sense Digital Passport. Click on the link to Resources at the bottom of the page to get a set of lesson plans to guide your students through many aspects of Digital Literacy. The games are designed to reinforce the learning. These lessons are mainly designed for grades 3-5 but I think students up to grade 7 could benefit from them.
The Digital Compass Program is excellent for teaching intermediate digital citizenship. Right now it is Flash based but I managed to get it to work using Firefox for a browser rather than Google Chrome. Be sure to check out the teacher resources.