A team of students at my university founded a new non profit online community 10 years ago (before fb was popular) to bridge the gaps in communication among students and among students and professors. I joined the initiative during the first month it was online, when it had only 13 registered members, as it was in accordance with my values.
My role was initially to enrich the archive of the website with useful material for the student but I soon realised I wanted to contribute more to the promotion of this idea. Thus I wrote a well polished mail and sent it to all professors. In parallel I improved the quality and quantity of provided material, organization of website etc in collaboration with the adminastrator who was making the web development.
The website reached 6000 users and became a model forum for the all universities that contacted us often to learn how we achieved this, We also had some professor members who endorsed the quality of our work. Overall, the students were happier because they had an opportunity to collaborate without cheating and achieve better grades. I take a lot of pride in this achievement as it was my first attempt to make something from scratch and it had a big impact on the facilitation of communication at my university thanks also to my work as a was recognized as a top contributor.