Gmail Provides Contact information

I have many contacts, and it is particularly difficult to remember all of their information, especially when we have not connected for a while.   This always led me to do a time consuming followup search.  Now Gmail has added a new right hand column that provides their key information as I highlight a message.   Something I have thought would be particularly useful for some time.  Nicely done.  Saves time.   Of course there are also contextual ads below this information.