Following is the excerpt from the Google announcement:
"Your Google+ profile is a place for you to share your passions with the millions of people who come to Google each day. Whether you're a clothing brand showing off your latest fashions (google.com/+hugoboss), an athlete talking about the game (google.com/+davidbeckham), or an actor recalling a favorite role (google.com/+hughjackman), your Google+ profile helps you connect with the people who share your interests.
Today we're introducing custom URLs to make it even easier for people to find your profile on Google+.
A custom URL is a short, easy to remember web address that links directly to your profile or page on Google+. For instance, +TOYOTA can now usegoogle.com/+toyota to unveil their latest models, +Britney Spears can share her upcoming appearances at google.com/+britneyspears, +Ubisoft can share game trailers and videos at google.com/+assassinscreed, and +Delta can help travellers find great deals at google.com/+delta. "