MyBlogLog is a nice service to know about a blogs visitors, it helps to interact or to just know about your visitor. You need to click that person’s profile pic and go to Mybloglog to see more about him.
You can click the little arrows beside the mybloglog pics. It also shows small icons for web 2.0 sites like Stumbleupon, linkedin, del.icio.us on top of the widget, hover your mouse on these icons to see those visitors has any presence on those sites.
I always check the news faces in my Mybloglog widget, if you are like me this bookmarkelt is quite useful. Source: Read/WriteWeb