With the volatile economic atmosphere nowadays, the time of executives and HR professionals is limited and valuable. Keep that in mind. The simple gesture of writing to thank them for their time and consideration of you as candidate will speak volumes.
The news regarding Microsoft got me thinking about the new wave of candidates that will be surging from their doors. As I always say, there is always a job. So get prepared to interview and nail a new better job.
There may be some stress involved with the responsibilities of the position or in the work environment and you don't want them thinking, "if you can't handle a simple interview, how are you going to deal with the everyday pressures of this job."