This concept paper explores citizenship in a digital age. The potential of Web 2.0 tools highlights the importance of educational institutions' consideration of the use of these tools in school settings to promote citizenship at a time when students are already exposed to powerful online communication platforms. First, a description of three Web 2.0 tools, blogs, wikis, and online social networks, is provided. This is followed by an exploration of digital citizenship. Then, several cases in

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... nt history where Web 2.0 tools played an important part in promoting democracy and social justice are examined. Finally, using a lens of digital citizenship, several instructional suggestions are provided for educators to help students experience and understand multiple layers of citizenship in a 21 st century technological landscape.