Topics: four phyla, Phonetics, phonology, Nasal processes, clicks, Syllable structure, Vowel harmony, Consonant alternation, tone, Morphology, Non-concatenative morphology, Noun class system, Verbal morphology, Verb extensions, argument structure, Syntax, semantics, Ideophones, negation, Predicate structure, Movement, Verb focus, predicate clefting, Serial verbs, Agreement phenomena, Consecutive tense, switch reference, Logophoricity, Language typology, historical linguistics, Diachronic typology, grammaticalization, Linguistics, archaeology, Language contact phenomena, Pidgins, creoles

Topics: Data Communications, Networking, data, signals, digital transmission, analog transmission, bandwidth utilization, transmission media, switching, data link layer, error detection, error correction, data link control, multiple access, wireless LAN, ethernet, SONET, SDH, virtual-circuit networks, frame relay, network layer, logical addressing, internet protocol, address mapping, error reporting, multicasting, transport layer, domain name system, remote logging, electronic mail, file transfer, HTTP, network management, SNMP, multimedia, cryptography, network security

Topics: Sociolinguistics, language demography, language varieties, language variation, Sociophonology, dialect, Communication Media sociolinguistics, spoken language, written language, Diglossia, code-switching, Language Contact, Language Generation, Pidgins, Creoles, Language Conflict, Multilingualism, Global Scale Sociolinguistics, Linguistic Etiquette, Bilingual Education, Sociolinguistics, language planning, language reform