In this text, Coates and Cameron attempt to address in a quantitative way how sociolinguistic differences are found between men's and women's speech.  While the research does not include online communication, it does show grounded empirical studies of women in their own speech communities such as among British Black women and women in mining communities in Wales.  They go on to address gender differences in communication "style" above and beyond format, and delve into examples of gossip, tag questions, and shop talk as female or male speech.  In all cases, the authors attempt to challenge prior academic research and offer new perspectives on the task of analyzing speech on gender lines, as in the example of Swann's "Talk Control: an Illustration From the Classroom of Problems in Analyzing Male Dominance of Conversation."