When I was at B-School, I would call up an alumnus at a company I was interested in working for and say, "I am going to be in your city/town this Friday, any chance for a coffee?". They would almost always say yes ... and then I would have to quickly book travel. On more than one occasion I did this, I turned up and found that I had meetings with HR, senior managers (even a CEO) planned. My experience is there is no substitute for travel during a MBA.