- WikiMedia is a non-profit organization that aims to empower people around the world to collect and develop educational content through various wiki projects like Wikipedia, Wiktionary, Wikisource, and Wikimedia Commons. - The organization's mission is to make and keep useful information from its projects available on the Internet free of charge in order to address issues like lack of education, poverty, and lack of access to media. - Teemu Leinonen gave a presentation on WikiMedia and discussed how contributing to Wikimedia projects can help share knowledge and be part of the solution to global problems.