Or you have created hardware and you want to be sure that the link is still working in future. However, this URL shortener service bring some discomfort by the users, because you do not know what you click here http://goo.gl/rDQGJU, the destination is unclear by cryptic combinations, this brings the lose of branding opportunity, the lose of credibility and others. This is the right time to start a owned service, not necessary a public service, but a own URL shortener.
After a phase of orientation and of trial, I am finally stuck with yourls.org. The good documentation, easy installation, enable the rapid and extensive functionality of this service has also completely convinced me.
The result are, you get well formed links, that documents the traffic so that you could address various channels and analyze the result. There are several detail view of the traffic available that give you a good overview of your links and there usage. Moreover, there are a number of s plugins for yourls.org available, for example a QR Code generator which automatically creates QR Code from the given links, .
http://bmline.de/presume was previously http://de.slideshare.net/bernd_martin/pdf-presume-bernd-martin-1
http://bmline.de/gplus was previously http://plus.google.com/111997463922026514911
linkedIn was previously http://www.linkedin.com/in/berndmartin
facebook was previously http://www.facebook.com/bernd.martin.79
With much more options for shopping, blogging or social media like xing, slideshare, github and ...