Communication skills workshop 26 (CSW26) 14.09.2013 Helsinki University students in Finland attend language courses to gain professional and academic language proficiency. Currently, across all Aalto University disciplines, English is the most popular language chosen by students. This case study focuses mainly on the experiences in commenting and feedback given during writing courses offered by the Language Centre at Aalto University to participants from various fields of engineering, arts and economics. Feedback rich blended courses have been running since 2008. During these years valuable information has been collected on the benefits and drawbacks of the various commenting methods used for providing students with feedback on their writing. Students produce several reports, essays and other written documents, as a part of their studies. In language and communication courses, the students often engage in a process writing approach by creating reports or essays in smaller steps to better support the learning of writing. Currently, these documents are submitted into multiple electronic platforms and commented by the teacher either using contemporary tools (pen and paper), or electronically (word processor and/or commenting/annotation tool). Each of these systems has their strengths and weaknesses. Our assumption was that students benefit from personal, detailed and rich feedback and clear explanations for improvement. This has led to systematic use and development of a text commenting protocol. The writing teachers using these methods conducted a series of surveys 2010-2013 given to the students in the course using the commenting tools. The questionnaires were used to gather students’ perceptions of commenting software for providing feedback on writing and rich feedback in general. The surveys also indicated that students had not previously received extensive feedback in their other classes. To address this need, we participated in designing a new, more flexible and user-friendly tool, known as KungFu Writing (KFW), for giving feedback on student writing. Since the survey results also suggest students were overall pleased with the feedback they received and felt it helped them to improve their writing, feedback has been adopted as a method of teacher - student communication several other languages.