This work examines the discursive construction of social identity of Arab-American groups on the World Wide Web (WWW). This study builds on scholarship in Critical Discourse Analysis (CDA), Corpus Linguistics (CL), and studies in multi modality. It examines the discursive construction of social identity of Arab-American groups on the World Wide Web (WWW). The discourses of these groups are characterized by the use of multiple semiotic modes such as language, image, and sound. This study explores how CDA and CL can cross-fertilize to produce theoretically sound methodologies that are appropriate for the analysis of multi modal discourses; it examines how Web discourses can be researched (i.e. located, stored, retrieved, and analyzed); and it investigates how cultural identification may be formed on the WWW. The findings in this study suggest that Arab-American groups have established ethnicity, religion, and class, among others, as important aspects of the identity of Arabs in the United States (and possibly elsewhere).