If you've been wondering what former Freddie Mac CEO Charles "Ed" Haldeman Jr. is up to, look no further than the McGraw-Hill Cos. (MHP).

Haldeman joined the publishing firm as a member of its board this week. Haldeman, 63, left Freddie Mac as CEO this year. He joined the government-sponsored enterprise in 2009 after the financial crisis hit and a year after Freddie was placed into conservatorship. He is often credited for stabilizing the company by building a new management team.

"Ed is a terrific addition to our deep and talented board," said Harold McGraw III, chairman, president and chief executive officer of The McGraw-Hill Cos. "Ed brings keen insights given his considerable experience and expertise in financial markets, excellent judgment and his strong record of working with regulators. We look forward to his leadership and the contributions he will make to our continued growth and success."