Wikimapa is a collaborative mapping project launched in 2009 that allows residents of low-income areas in Brazil to document points of interest in their communities. It was created to address the problem that official maps often do not include information about slums and their resources. The project trains young residents to map their communities using mobile phones and an online mapping platform. Wikimapa has expanded geographic coverage, increased its userbase, and partnered with other organizations. It aims to empower youth, appreciate local communities, and improve access to services through collaborative mapping.