Two solid reference volumes from Routledge published this year are The Routledge Handbook of Health Communication and Sourcebook for Political Communication Research: Methods Measures, and Analytical Techniques.
The Handbook (edited by Teresa L Thompson, Roxanne Parrott, and Jon F. Nussbaurm, 2001) is in its second edition but revamped to “emphasize work in such areas as barriers to disclosure in family conversations and medical interactions, access to popular media and advertising, and individual searches online for information and support to guide decisions and behaviors with health consequences.” You can also find overviews on methods.
The Sourcebook, (edited by Erik P. Brucy and R. Lance Holbert, 2011) is a benchmark resource covering “the major analytical techniques used in political communication research, including surveys, experiments, content analysis, discourse analysis (focus groups and textual analysis), network and deliberation analysis, comparative study designs, statistical analysis, and measurement issues. It also includes such innovations as the use of advanced statistical techniques, and addresses digital media as a means through which to disseminate as well as study political communication.”
Both volumes are available in the Annenberg Library Reference (just ask if you want to take them home) at JA 86 s68 2011 (Sourcebook) and R 118 H26 2011 (Handbook).