This is actually easy to do and you could use any URL shortener such as bit.ly, is.gd, etc. but there is now a URL tool to make a nifty "custom" url for your Google+ profile, Gplus.to. Gplus.to uses your username or Google id number. Didn't know you had an id number at Google? Well you do. ;-)Creating a custom URL for Google+ using Gplus.to
  •  Login to Google+ to find your ID number. 
  • Your ID number is the long string of numbers For example my public profile is http://plus.google.com/109563226758360576597; the ID number is that bit at the end.
  • Copy your ID number.
  • Go to http://gplus.to/
  • Choose a nickname (this will be the base of custom URL)
  • Enter your Google+ ID
  • Click add
  • Voila - gplus.to/georgiawebgurl
Creating a custom URL for Google+ using a different service If you are using a different url shortener such as bit.ly, is.gd, tinyurl, etc. you will need to get your actual Google+ ID for you.