The process took 1 week. I interviewed at Bloomberg (New York, NY) in Mar 2009
Interview
Initial phone interview with an HR representative. Typical questions and going through the resume for her to get a feel for me and how I would fit with the company. Another phone interview with a manager from the department the internship was with. Somewhat similar to the HR interview but a little more behavioral questions. Nothing too difficult, pretty laid back. Received a phone call about a week later and was offered the position.