The rise of the internet has given birth to a lot of good things ... and a lot of things that are not so good. Now your good name can end up in the hands of people you can not identify and who are in places you may not be able to point to on a map.
If someone says something negative about you or something true but old and obsolete perhaps it is that you were fired from your last job these things can really damage your future. At the same time, your digital reputation also creates significant opportunities. If you are not taking advantage of what your reputation could be or hanging your digital shingle the way it deserves to be hung, people are not seeing your best foot forward.