These two issues of volume 17, include the following articles: "The Competing Motivation Model in the Functional Domains of Negation" (M. Angelica Furtado da Cunha); "Discursive Resonance and Politeness in Reading and Writing Practices" (Silvana Serrani Infante); "The Acquisition of Relative Clauses in Brazilian Portuguese" (Maria Cecilia Perroni); "Has the Adverbial Entao Already Become Grammaticalized as a Conjunction?" (Erotilde Goreti Pezzatti); "The Two Great of Brazilian Sociolinguistic History (1500-2000)" (Dante E. Lucchesi); "Interview with M.A.K. Halliday, Cardiff, July, 1998" (Geoff Thompson and Heloisa Collins); "Brazilian Portuguese and the Null Subject Parameter" (M. Aparecida C.R. Torres-Morais); "Applied Research in Language: Challenges for the New Millennium" (Carlos Alberto Faraco); "Textlinguistics: Quo Vadis?" (Ingedore Grunfeld Villaca Koch); "Dialectology: Traveled Roads and Routes to Travel" (Suzana Alice Marcelino Cardoso); "Theoretical and Descriptive Issues in Sociolinguistics and in Applied Sociolinguistics and a Project for an Agenda" (Maria Cecilia de Magalhaes Mollica and Claudia Nivia Roncarti); and "Research in Portuguese Phonology" (Maria Helena Mira Mateus). An appendix includes: "52nd SBPC Annual Meeting: Brasilia, July 2000 Meeting: Scientific Journals in the New Century"; "Letters and Linguistics Brazilian Journals" (Luiz Antonio Marcuschi); "Electronic Texts" (Vilson J. Leffa); and "The Preparation of a General Journal" (Leila Barbara, Maria Aparecida Caltabianco, and Sumiko N. Ikeda). (Papers contain references.) (SM)