ELLO (English Language and Linguistics Online) is a modular introductory courseware in English linguistics developed by a linguistic-department network of 4 German universities: Osnabrück, Hannover, Braunschweig and Göttingen. This website is designed as a study aid for undergraduate students of linguistics and consists of 15 modules covering courseware on general linguistics as well as on selected subfields.

该网站开放了大部分资源，是学习英语语言学基础知识的不错资源。