I've just added a new blog to the blogroll - Institutional Shareholders Services (ISS) Corporate Governance Blog.
ISS is one of the major players in the corporate governance world. They're best known for their role in advising shareholders in the proxy process, but also have their fingers in a lot of other corporate governance-related pies. They've been blogging since February of this year, and have a lot of interesting stuff up there. Give them a look (I've already found some good stuff for my classes).