I've been doing this for a while with http://trackmycv.com/ http://trackmycv.com/ basically you can embed a transparent pixel in an MS word (or any other kind o

I've been doing this for a while with http://trackmycv.com/ http://trackmycv.com/ basically you can embed a transparent pixel in an MS word (or any other kind of MS office document) and get notifications whenever it's opened.