Language Learning Blogs Essays on second language teaching focuses on how the kinds of tasks performed by the learner relate to language output. "Choosing and Using Communication Tasks for Second Language Instruction"contains a taxonomy of communication task types, based on the concepts of goal and activity, particularly with reference to classroom pedagogy and learning theory. "Interlocutor and Task Familiarity: Effects on Inter actional Structure" looks at the extent to which task participants' familiarity with each other and with task type affect the linguistic outcome. "Tasks and Inter language Performance: An SLA Research Perspective" (Patricia A. Duff) presents naturalistic research on an immigrant's second language acquisition, focusing on lexical variety and syntax (nominal reference and negotiation). In "Variation in Foreigner Talk Input: The Effects of Task and Proficiency" (Ian M. Short reed), the study is concerne