In many corporate communication documents (including the #GradleSummit 2016 link on the current fromt page of gradle.org), I can see links shortened by bit.ly and buf.ly
Please keep in mind that for many of the bigger corporations, these are blacklisted by internet security proxies like McAffee, Bluecoat, IIJ and the like.
This results in people not being able to open your link, even if the non-shortened URL would be accessible otherwise.