As PROIDEA, we have organized three editions of HackYeah hackathon already, and a lot of smaller hackathons, too. We learned a lot during all this time, and we would like to share that knowledge with our community.That is why we prepared a free methodology of preparing a social hackathon and we give it out to you – feel free to use it while organizing your events!The methodology was created as part of a project that is co-financed by the National Fund for Environmental Protection and Water Management.