GLOSS online language lessons are developed for independent learners to provide them with the learning/teaching tools for improving their foreign language skills. Reading and listening lessons are based on authentic materials (articles, TV reports, radio broadcasts, etc.) and consist of 4 to 6 activities. The motivating tasks are accompanied with in-depth feedback that provide learners with thorough explanations and tutoring just like an attentive and experienced teacher would do. With more than 5,018 instructional hours of materials, GLOSS is a valuable resource in maintaining and improving language ability of the learners.