The Rotary International website offers a project forum, where you can find projects and project partners, volunteers and donations. You may search it for areas of focus or key words like "South Africa". The project description is in English or a language spoken in the project's country.

Project forum at Project forum at the ICC website:
more projects offered pre-selected projects
clubs may present projects themselves ICC members are responsible for project presentation
world-wide projects focus on Southern Africa
display of already active volunteers and donations project description in german language

Our suggestion: make use of both platforms.