By Deborah M. Todd SAN FRANCISCO (Reuters) – Former Kleiner Perkins Caufield & Byers partner Ellen Pao, whose 2012 gender discrimination lawsuit against the venture firm fueled a debate over tech industry diversity, has joined Oakland-based Kapor Center for Social Impact as an investor and diversity advocate, Kapor announced Tuesday. Pao, also a former chief executive officer of the social network Reddit, was named Chief Diversity and Inclusion officer for the non-profit founded by Mitch Kapor, creator of the pioneering Lotus spreadsheet software, and his wife Freada Kapor Klein. Pao will also be a Venture Partner at Kapor Capital, which invests in startups that solve problems for under-served people.