One catch to the customer URLs, however, , is that Google says in the fine print that it might start charging for them some day.

Another catch is that Google will tell you what your custom URL is, though you'll have the opportunity to tweak it through an appeals process.

Google's Saurabh Sharma -- who has a custom URL himself now -- wrote on Google+ today that "we'll be offering custom URLs to many more profiles and pages in the future."

#Vanityurl has been trending high on Google+ all day, alongside #tigerwoods and #rogerfederer, with users of the social network site celebrating and bemoaning their status, as the case may be.

Some Google+ users were also reporting that their existing Google Profile custom URLs are still working, so are wondering what might happen to them as the Google+ customer URLs roll out.