StatCounter.com powered real-time detailed stats about the visitors to your blog.
Since I've known this plugin, I've been using it always on all my websites. Although, I have GA installed, statcounter provides many additional information that GA do not provide. And, the good thing is...it's free.
Makes life easier on the Web. For what it is intended to work very well.
It bothers me that the data can only be seen when you log in with a username and password. Why? Unnecessary complication. Life is simple. Is it not sufficient Project ID and Security Code?