Sociocultural linguistics; language and youth; language, gender, and sexuality; African American English; Chicano and Mexican Spanish; language and scientific practice.

Second language acquisition, L2 phonology and intonation, L2 reading and vocabulary acquisition, computer-assisted language learning.

Second language writing, pedagogical grammar, teacher education.

Second language acquisition with a focus on ESL learners, foreign language education, bilingualism, heritage language maintenance, and interlanguage pragmatics.

Qualitative/ethnographic studies, business writing, technical writing, scientific writing, argumentation, knowledge ecologies, collaboration, multimedia communication.

Second language acquisition, language teaching methods and pedagogy, Spanish as a heritage language.

Phonology of Spanish and Romance languages, theoretical phonology, Optimality Theory, phonetics, language change.

Foreign language acquisition; cognitive aspects of foreign language learning; transition from language to literature study; foreign language writing.

Historical Chinese linguistics (grammar and lexicon), applied linguistics (language teaching theory and methodology, context and culture in language learning, and the use of computers in teaching foreign languages.