[Air-l] undergrad text on CMC?

Can anybody recommend a recent overview book (authored or edited) on CMC that would be suitable for an undergraduate class? It's for a class on Technology and Literacy. I plan on using my own recently released _Laptops and Literacy_ to cover issues related to K-12 education. I'd like to use one additional book that gives an overview of CMC (email, text messaging, Web, bulletin boards, blogs, wikis, etc.) suitable for undergraduate students at a research university. Thanks, Mark -- Mark Warschauer Associate Professor of Education and Informatics University of California, Irvine 2001 Berkeley Place Irvine, CA 92697-5500 tel: (949) 824-2526, fax: (949) 824-2965 markw@uci.edu; http://www.gse.uci.edu/faculty/markw