Does corporate philanthropy by software, entertainment, and tourism firms sustain the urban business community's hegemony in urban politics? Software and entertainment depend on local resources but not ones that involve the business community and promote philanthropy to the traditional community charities. Tourism depends on local markets and environmental amenities, which promote philanthropy to traditional charities and collaborations with environmental groups, the traditional urban business community's "enemy". Overall, the three sectors' philanthropy and advocacy collaborations with environmental nonprofits and higher educational institutions erode the cohesion of urban business communities and weaken the traditional urban business community's control over civic resources.