Google is rolling out some very nice (and long overdue) changes to your “Circles” page.  In particular, four things are new:

• A new left-hand navigation system
• Quick access to your email address book(s)
• Circles that shrink in size on smaller screens
• Lots of improvements to the “find people” tool

It looks to be a nice little update.  Many users (including myself) don’t have it yet, but it’s rolling out slowly.  Here are a few screenshots if you don’t have it yet:

More details can be found in this post from +Sean Purcell.