Topics: Sociolinguistics, languages, dialects, social identity, language change, regional dialects, dialect continua, dialect geography, speech communities, social networks, social identities, Perceptual dialectology, Linguistic landscapes, Diglossia, language attitudes, language ideologies, Language learning, Questioning diglossia, Multilingual Discourse, Multilingual identities, Markedness Model, Lingua Francas, contact languages, Pidgin Languages, Creole Languages, Pidgin Formation, Creole Formation, Morphosyntax, Language Variation, mapping dialects, dialectology, linguistic variable, Social Variation, Social class membership, Social networks, data collection, data analysis, sampling, pragmatics, speech acts, pronouns, discourse analysis, interactional sociolinguistics, contextualization, critical discourse analysis, sexist language, grammatical gender marking, Women's language, Multilingual Education, language policy, language planning