Final answer:
A new type of watchdog organization in corporate social responsibility is socially conscious research organizations, focusing on the impacts of companies' practices on society and maintaining corporate accountability.
Step-by-step explanation:
Besides environmental groups, unions, and investors, a relatively new type of watchdog organization that reports on corporate social responsibility efforts is socially conscious research organizations. These entities closely monitor and report on the social, environmental, and governance performance of businesses. They do this by analyzing the sustainability practices of companies and their impact on society. This is essential for maintaining corporate accountability, especially after instances like the failure of corporate governance in the case of Lehman Brothers, which did not provide accurate financial information to investors.